docs: add Colab notebook for full-talk transcription (notebooks/colab_full_transcribe.ipynb)

GPU(T4) 셀: ffmpeg+uv → 익명 clone → uv sync(engine+gpu) → detect →
오디오 업로드 → large-v3-turbo 풀 전사 → transcript.txt 다운로드.
(Colab은 사내 게이트 미도달이라 전사 전용; 보정은 온프렘.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.omc/project-memory.json

@@ -1,22 +1,38 @@
 {
   "version": "1.0.0",
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+  "lastScanned": 1780919472386,
   "projectRoot": "/root/luke_scribe",
   "techStack": {
     "languages": [
-      "Python"
+      {
+        "name": "Python",
+        "version": null,
+        "confidence": "high",
+        "markers": [
+          "pyproject.toml"
+        ]
+      }
     ],
     "frameworks": [
-      "FastAPI · faster-whisper/CTranslate2 · Redis/RQ(no-fork) · pydantic v2 · ffmpeg · Silero VAD"
+      {
+        "name": "fastapi",
+        "version": null,
+        "category": "backend"
+      },
+      {
+        "name": "pytest",
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+        "category": "testing"
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     ],
-    "packageManager": "uv",
+    "packageManager": null,
-    "runtime": "Python 3.11+"
+    "runtime": null
   },
   "build": {
-    "buildCommand": "uv sync",
+    "buildCommand": null,
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+    "testCommand": "export PATH=\"$HOME/.local/bin:$HOME/.cargo/bin:$PATH\"\necho \"=== ruff ===\"; uv run ruff check src/ tests/ && echo clean\necho \"=== pytest ===\"; uv run pytest -q 2>&1 | tail -2\necho \"=== --correct 경로(설정 없음 → 우아한 에러) ===\"\nuv run luke-scribe transcribe /tmp/jfk.flac --model tiny --language en --correct 2>&1 | tail -4; echo \"exit=${PIPESTATUS[0]}\"",
-    "lintCommand": "uv run ruff check src/ tests/",
+    "lintCommand": "ruff check",
-    "devCommand": "uv run luke-scribe detect",
+    "devCommand": null,
     "scripts": {}
   },
   "conventions": {
@@ -29,9 +45,10 @@
     "isMonorepo": false,
     "workspaces": [],
     "mainDirectories": [
-      "src/luke_scribe (계획, 미생성)"
+      "src",
+      "tests"
     ],
-    "gitBranches": "main"
+    "gitBranches": null
   },
   "customNotes": [
     {
@@ -57,10 +74,67 @@
       "source": "manual",
       "category": "status",
       "content": "P1 진행(2026-06-07): ✅ detect(능력등급 T0~T3, 1050→T0_CPU 명시강등) · ✅ transcribe(faster-whisper CPU 검증: JFK 11s 클립 정확 전사, model_used 출력) · 단위테스트 10개 통과. 코드 존재함(더 이상 0%). 남음: word-ts/format 출력옵션·Silero VAD 옵션화, VRAM 실측 probe(정적추정 대체), bench(라벨 KO+EN 샘플셋 필요), 상위 tier(T2/T3) Colab 검증, P2(API+Redis/RQ). 브랜치 feat/p1-core."
+    },
+    {
+      "timestamp": 1780926195887,
+      "source": "manual",
+      "category": "finding",
+      "content": "검증된 발견(2026-06-07): KO+EN 혼용어 음차 문제의 open-vocab 해법 = 사내 GPT-4o 텍스트 후처리 보정. faster-whisper(turbo)가 음차로 망친 영문 용어를 hotwords 등록 없이 문맥+지식으로 복원. 실증(EmbeddingGemma 강연 90초 슬라이스): 인베딩 점마→Embedding Gemma, 재미나이→Gemini, 점마→Gemma, 랭기징→Language, 구글 포 디벨로퍼스→Google for Developers (5/5, 일반 한국어는 보존). 게이트=OpenAI 호환(baseURL http://192.168.0.123:8080/v1, model copilot-gpt-4o, API키 필요·키는 메모리에 저장 안 함; localhost:8080은 사용자 머신 터널이라 샌드박스선 미도달) → 사내 호출이라 외부 egress 0(프라이버시 OK). 함의: hotwords는 등록된 것만 잡아 불충분, LLM 문맥보정이 '모르는 용어'까지 커버. 단서: (1) 'Embedding Gemma' 띄어쓰기(공식 EmbeddingGemma)→rules/glossary 정규화 병행 필요, (2) LLM이 아는/추론가능 용어만·초신조어는 confidence 플래그→휴먼, (3) 샘플1개라 과교정 추가검증, (4) 게이트 경로 불안정(401→timeout→reset)→재시도 필요(스크립트에 반영). 작은 컨텍스트는 청크+러닝글로서리로 우회. PoC=scripts/llm_correct.py → 승격 대상 postprocess/llm.py(confidence-gated·청크·backend=internal·감사로그) + transcribe --correct 플래그."
     }
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COLAB.md

@@ -0,0 +1,79 @@
+# Colab / GPU 풀 전사 가이드
+
+GPU 환경(Colab T4/A100 또는 온프렘 GPU)에서 **풀 강연을 빠르게** 전사(+선택 보정)합니다.
+CPU(개발 박스)는 풀 강연이 느려(turbo ~RTF 5×) 비권장 — 여기서 돌리세요.
+GPU(T4)에서 turbo는 대략 실시간의 ~0.1~0.3× → **37분 강연이 수 분**.
+
+---
+
+## A) Google Colab — 전사 전용
+
+> Colab은 외부 클라우드라 **사내 LLM 게이트(192.168.0.123)에 못 닿습니다** → `--correct`(보정) 불가, **전사만**.
+> 런타임 → 런타임 유형 변경 → **GPU(T4)** 선택.
+
+```python
+# 1) 시스템 의존성 + uv
+!apt-get -qq update && apt-get -qq install -y ffmpeg
+!curl -LsSf https://astral.sh/uv/install.sh | sh
+import os; os.environ["PATH"] = "/root/.local/bin:" + os.environ["PATH"]
+
+# 2) 코드 (저장소 익명 read 허용)
+!git clone -b feat/p1-core https://git.lukehemmin.com/lukehemmin/luke_scribe.git
+%cd luke_scribe
+
+# 3) 의존성 (엔진 + GPU CUDA 런타임)
+!uv sync --extra engine --extra gpu
+
+# 4) GPU 인식 확인 (T3면 turbo+large-v3 동시상주)
+!uv run luke-scribe detect
+
+# 5) 오디오 업로드 (또는 Drive 마운트)
+from google.colab import files
+AUDIO = list(files.upload().keys())[0]
+
+# 6) 풀 전사 (large-v3-turbo) — 더 높은 정확도는 --model large-v3
+!uv run luke-scribe transcribe "$AUDIO" --model large-v3-turbo --language ko --timestamps | tee transcript.txt
+```
+
+### Colab을 API로 외부 노출하려면
+```python
+# cloudflared 공개 URL 발급 → 외부에서 curl
+!uv sync --extra engine --extra gpu --extra api
+import subprocess, os
+os.environ["SCRIBE_API_KEYS"] = '["colab-test"]'
+!nohup uv run luke-scribe serve --host 0.0.0.0 --port 8000 --tunnel cloudflare > serve.log 2>&1 &
+import time; time.sleep(8); print(open("serve.log").read())   # public *.trycloudflare.com URL 확인
+```
+
+---
+
+## B) 온프렘 GPU — 전사 + 사내 LLM 보정 (풀 파이프라인)
+
+사내망(게이트 192.168.0.123 도달) + GPU 머신이면 **음차→영문 복원까지** 한 번에:
+
+```bash
+git clone -b feat/p1-core https://git.lukehemmin.com/lukehemmin/luke_scribe.git && cd luke_scribe
+uv sync --extra engine --extra gpu
+
+export SCRIBE_LLM_BASE_URL=http://192.168.0.123:8080/v1
+export SCRIBE_LLM_API_KEY=<사내 키>          # 셸 히스토리 주의
+export SCRIBE_LLM_MODEL=copilot-gpt-4o
+export SCRIBE_LLM_MAX_CHARS=3000             # 사내 LLM 컨텍스트 창에 맞춰(~8k→1500/~16k→3000/~30k→6000)
+
+# 전사 + 청크 보정을 한 명령으로
+uv run luke-scribe transcribe talk.m4a --model large-v3-turbo --language ko --correct | tee transcript.txt
+```
+
+API로:
+```bash
+uv run luke-scribe serve                     # 출력된 X-API-Key 사용
+curl -H "X-API-Key: <키>" -F file=@talk.m4a -F model=large-v3-turbo -F correct=true \
+     http://localhost:8000/v1/transcribe
+```
+
+---
+
+## 참고
+- 보정은 긴 전사를 `SCRIBE_LLM_MAX_CHARS` 청크로 분할 + **러닝 글로서리**로 처리(작은 컨텍스트 창 대응).
+- 약 GPU(1050/2GB)는 turbo도 안 들어가 자동으로 **CPU(T0)** 로 강등 — `detect`로 등급 확인.
+- 오디오 파일은 저장소에 없음(`.gitignore`) — Colab 업로드/Drive 또는 온프렘 로컬 경로 사용.

notebooks/colab_full_transcribe.ipynb

@@ -0,0 +1,130 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# luke_scribe — Colab 풀 강연 전사\n",
+    "\n",
+    "GPU(T4)에서 풀 강연을 **수 분**에 전사합니다.\n",
+    "\n",
+    "**먼저:** 런타임 → 런타임 유형 변경 → 하드웨어 가속기 **GPU** 선택.\n",
+    "\n",
+    "> ⚠️ Colab은 외부라 **사내 LLM 게이트(192.168.0.123)에 못 닿습니다** → 보정(`--correct`) 불가, **전사만**. 보정까지는 사내망 GPU에서 (repo `COLAB.md` B절).\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 0) GPU 확인 (없으면 런타임 유형을 GPU로)\n",
+    "!nvidia-smi -L || echo \"GPU 없음 → 런타임 유형을 GPU로 바꾸세요\"\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 1) 시스템 의존성 + uv\n",
+    "!apt-get -qq update && apt-get -qq install -y ffmpeg\n",
+    "!curl -LsSf https://astral.sh/uv/install.sh | sh\n",
+    "import os\n",
+    "os.environ['PATH'] = '/root/.local/bin:' + os.environ['PATH']\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 2) 코드 가져오기 (저장소 익명 read 허용)\n",
+    "!git clone -b feat/p1-core https://git.lukehemmin.com/lukehemmin/luke_scribe.git\n",
+    "%cd luke_scribe\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 3) 의존성 (엔진 + GPU CUDA 런타임) — 수 분 소요\n",
+    "!uv sync --extra engine --extra gpu\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 4) 하드웨어 등급 확인 (T3 = turbo+large-v3 동시상주)\n",
+    "!uv run luke-scribe detect\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 5) 강연 오디오 업로드 (m4a/mp3/wav/mp4 …)\n",
+    "from google.colab import files\n",
+    "AUDIO = list(files.upload().keys())[0]\n",
+    "print('업로드:', AUDIO)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 6) 풀 전사 (large-v3-turbo; 더 정확히는 --model large-v3)\n",
+    "!uv run luke-scribe transcribe \"$AUDIO\" --model large-v3-turbo --language ko --timestamps | tee transcript.txt\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "metadata": {},
+   "execution_count": null,
+   "outputs": [],
+   "source": [
+    "# 7) 전사문 내려받기\n",
+    "from google.colab import files\n",
+    "files.download('transcript.txt')\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 참고\n",
+    "- **모델**: `large-v3-turbo`(빠름) ↔ `large-v3`(정확). `detect`가 T0(CPU)면 약 GPU(느림).\n",
+    "- **보정(음차→영문)**: Colab 불가(게이트 미도달). 사내망 GPU에서 `--correct` + `SCRIBE_LLM_*` (`COLAB.md` B절).\n",
+    "- **속도**: T4 turbo ≈ 실시간 0.1~0.3× → 37분 강연 수 분.\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "accelerator": "GPU",
+  "colab": {
+   "provenance": [],
+   "gpuType": "T4"
+  },
+  "kernelspec": {
+   "display_name": "Python 3",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}

pyproject.toml

@@ -18,8 +18,10 @@ dependencies = [
 engine = ["faster-whisper>=1.0.3", "av>=11"]
 # GPU CUDA 런타임 (faster-whisper GPU 추론 시)
 gpu = ["nvidia-cublas-cu12", "nvidia-cudnn-cu12"]
-# P2 API + Queue
+# 테스트 API (동기) — serve
-api = ["fastapi>=0.110", "uvicorn[standard]>=0.29", "redis>=5.0", "rq>=1.16"]
+api = ["fastapi>=0.110", "uvicorn[standard]>=0.29", "python-multipart>=0.0.9"]
+# P2 비동기 큐 (보류)
+queue = ["redis>=5.0", "rq>=1.16"]
 # P5 옵션
 diarize = ["pyannote.audio>=3.1"]
 llm = ["openai>=1.30"]
@@ -35,4 +37,4 @@ build-backend = "hatchling.build"
 packages = ["src/luke_scribe"]
 
 [dependency-groups]
-dev = ["pytest>=8.2", "ruff>=0.5"]
+dev = ["pytest>=8.2", "ruff>=0.5", "httpx>=0.27"]

scripts/llm_correct.py

@@ -0,0 +1,82 @@
+#!/usr/bin/env python3
+"""STT 후처리 PoC — 음차된 영문 기술용어를 사내 LLM(OpenAI 호환)으로 복원.
+
+게이트가 닿는 환경에서 실행:
+    export SCRIBE_LLM_BASE_URL=http://localhost:8080/v1
+    export SCRIBE_LLM_API_KEY=<사내 키>
+    export SCRIBE_LLM_MODEL=copilot-gpt-4o
+    python3 scripts/llm_correct.py              # 내장 샘플로 데모
+    python3 scripts/llm_correct.py < my.txt     # 임의 전사 교정
+
+외부 의존성 없음(urllib). 향후 postprocess/llm.py(confidence-gated, 청크/러닝글로서리)로 발전.
+"""
+from __future__ import annotations
+
+import json
+import os
+import sys
+import time
+import urllib.error
+import urllib.request
+
+SYSTEM = (
+    "너는 한국어 STT 전사 후처리기다. 한국어 음성에 섞여 나온 영어 기술용어·고유명사가 "
+    "발음대로 한글로 음차되어 잘못 적힌 부분을 문맥과 지식으로 원래 영어 표기로 복원하라. "
+    "일반 한국어는 그대로 두고, 확실하지 않으면 바꾸지 마라. 설명 없이 교정된 전사문만 출력하라."
+)
+
+# turbo가 망친 실제 전사(EmbeddingGemma 강연) — 내장 데모용
+SAMPLE = (
+    "그래서 오늘 준비한 내용은 기본적으로 인베딩 점마에 대해서 설명을 드릴 텐데요. "
+    "여러분들이 알고 계시는 랭기징 모델이 정말 사람이 생각하는 것처럼 하는데 "
+    "그 다음에 구글에 런칭한 오픈모델입니다. 인베딩 점마 라는 것을 소개를 해드릴 예정입니다. "
+    "그리고 어 재미나이 하고 이제 점마하고 두 가지가 있는데요. "
+    "구글 포 디벨로퍼스 사이트에 가시면 제가 올린 포스트도 보실 수 있는데."
+)
+
+
+def correct(text: str) -> str:
+    base = os.environ.get("SCRIBE_LLM_BASE_URL", "http://localhost:8080/v1").rstrip("/")
+    key = os.environ.get("SCRIBE_LLM_API_KEY", "")
+    model = os.environ.get("SCRIBE_LLM_MODEL", "copilot-gpt-4o")
+    payload = {
+        "model": model,
+        "temperature": 0,
+        "messages": [
+            {"role": "system", "content": SYSTEM},
+            {"role": "user", "content": text},
+        ],
+    }
+    req = urllib.request.Request(
+        base + "/chat/completions",
+        data=json.dumps(payload).encode(),
+        headers={"Content-Type": "application/json", "Authorization": "Bearer " + key},
+    )
+    retries = 4
+    for attempt in range(1, retries + 1):
+        try:
+            with urllib.request.urlopen(req, timeout=90) as resp:
+                return json.loads(resp.read())["choices"][0]["message"]["content"]
+        except urllib.error.HTTPError:
+            raise  # 실제 HTTP 응답(401/400 등) — 재시도 무의미
+        except (urllib.error.URLError, OSError) as exc:  # 연결 reset/timeout 등 transient
+            if attempt == retries:
+                raise
+            print(f"  [retry {attempt}/{retries - 1}] {type(exc).__name__} → 재시도", file=sys.stderr)
+            time.sleep(1.5 * attempt)
+    raise RuntimeError("unreachable")
+
+
+def main() -> None:
+    src = (sys.stdin.read().strip() if not sys.stdin.isatty() else "") or SAMPLE
+    print("=== 원본 ===\n" + src + "\n\n=== 교정 ===")
+    try:
+        print(correct(src))
+    except urllib.error.HTTPError as exc:
+        sys.exit(f"HTTP {exc.code}: {exc.read().decode()[:300]}")
+    except Exception as exc:  # noqa: BLE001
+        sys.exit(f"{type(exc).__name__}: {exc}")
+
+
+if __name__ == "__main__":
+    main()

src/luke_scribe/api/__init__.py

@@ -0,0 +1 @@
+"""HTTP API (FastAPI) — 동기 테스트 API. 비동기 큐/실시간은 P2/P3."""

src/luke_scribe/api/app.py

@@ -0,0 +1,24 @@
+"""FastAPI 앱 팩토리."""
+from __future__ import annotations
+
+import contextlib
+import logging
+from collections.abc import AsyncIterator
+
+from fastapi import FastAPI
+
+from .deps import ensure_keys
+from .routes.transcribe import router
+
+logger = logging.getLogger("luke_scribe.api")
+
+
+def create_app() -> FastAPI:
+    @contextlib.asynccontextmanager
+    async def lifespan(_app: FastAPI) -> AsyncIterator[None]:
+        logger.info("luke_scribe API ready · X-API-Key=%s", ensure_keys()[0])
+        yield
+
+    app = FastAPI(title="luke_scribe", version="0.1.0", lifespan=lifespan)
+    app.include_router(router)
+    return app

src/luke_scribe/api/deps.py

@@ -0,0 +1,26 @@
+"""인증 — X-API-Key (스펙 §3.8). 키 미설정 시 기동 때 임시 키 1개 생성·강제."""
+from __future__ import annotations
+
+import secrets
+
+from fastapi import Header, HTTPException, status
+
+from ..config import settings
+
+_ephemeral_key: str | None = None
+
+
+def ensure_keys() -> list[str]:
+    """유효 키 목록. 설정이 없으면 임시 키를 1회 생성해 반환(앱이 출력)."""
+    global _ephemeral_key
+    if settings.api_keys:
+        return settings.api_keys
+    if _ephemeral_key is None:
+        _ephemeral_key = "sk-luke-" + secrets.token_urlsafe(24)
+    return [_ephemeral_key]
+
+
+def require_api_key(x_api_key: str | None = Header(default=None)) -> str:
+    if x_api_key not in ensure_keys():
+        raise HTTPException(status.HTTP_401_UNAUTHORIZED, "invalid or missing X-API-Key")
+    return x_api_key

src/luke_scribe/api/engine_pool.py

@@ -0,0 +1,27 @@
+"""프로세스 레벨 엔진 캐시 — 모델 load-once 재사용 (스펙 §3.5).
+
+전사는 `transcribe_lock`으로 직렬화(단일 GPU/CPU, 테스트 등급). uvicorn 단일 워커 전제.
+"""
+from __future__ import annotations
+
+import threading
+
+from ..engine.faster_whisper_engine import FasterWhisperEngine
+
+_engines: dict[tuple[str, str, str], FasterWhisperEngine] = {}
+_cache_lock = threading.Lock()
+transcribe_lock = threading.Lock()
+
+
+def get_engine(
+    model: str, device: str, compute_type: str, cache_dir: str | None = None
+) -> FasterWhisperEngine:
+    key = (model, device, compute_type)
+    eng = _engines.get(key)
+    if eng is None:
+        with _cache_lock:
+            eng = _engines.get(key)
+            if eng is None:
+                eng = FasterWhisperEngine(model, device, compute_type, cache_dir)
+                _engines[key] = eng
+    return eng

src/luke_scribe/api/routes/transcribe.py

@@ -0,0 +1,124 @@
+"""라우트 — /health, /v1/system, /v1/models, POST /v1/transcribe (동기)."""
+from __future__ import annotations
+
+import contextlib
+import os
+import tempfile
+
+from fastapi import APIRouter, Depends, File, Form, HTTPException, UploadFile, status
+from fastapi.responses import PlainTextResponse
+
+from ...audio.ingest import probe_media
+from ...config import settings
+from ...devices import DeviceManager
+from ...postprocess import llm as llm_correct
+from ...postprocess import rules
+from ...results import formats
+from ..deps import require_api_key
+from ..engine_pool import get_engine, transcribe_lock
+
+router = APIRouter()
+
+
+@router.get("/health")
+def health() -> dict[str, str]:
+    return {"status": "ok"}
+
+
+@router.get("/v1/system")
+def system():  # noqa: ANN201 — DeviceProfile(pydantic) 직렬화
+    return DeviceManager.detect()
+
+
+@router.get("/v1/models")
+def models() -> dict:
+    profile = DeviceManager.detect()
+    return {
+        "tier": profile.tier.value,
+        "served": profile.served_models,
+        "realtime": settings.model_realtime,
+        "batch": settings.model_batch,
+    }
+
+
+@router.post("/v1/transcribe")
+def transcribe_ep(  # noqa: PLR0913 — 요청 옵션 다수(스펙 options 스키마)
+    file: UploadFile = File(...),
+    language: str | None = Form(None),
+    model: str | None = Form(None),
+    device: str = Form("auto"),
+    vad: bool = Form(True),
+    word_timestamps: bool = Form(False),
+    correct: bool = Form(False),
+    response_format: str = Form("json"),
+    _api_key: str = Depends(require_api_key),
+):
+    suffix = os.path.splitext(file.filename or "")[1] or ".bin"
+    fd, tmp = tempfile.mkstemp(prefix="luke_up_", suffix=suffix)
+    try:
+        with os.fdopen(fd, "wb") as out:
+            while chunk := file.file.read(1 << 20):
+                out.write(chunk)
+
+        info = probe_media(tmp)
+        if info.duration_s > settings.max_duration_s or info.size_bytes > settings.max_size_bytes:
+            raise HTTPException(
+                status.HTTP_413_CONTENT_TOO_LARGE,
+                f"{info.duration_s:.0f}s/{info.size_bytes}B "
+                f"exceeds {settings.max_duration_s}s/{settings.max_size_bytes}B",
+            )
+
+        profile = DeviceManager.detect(force_device=(None if device == "auto" else device))
+        dev = "cpu" if profile.kind == "cpu" else "cuda"
+        model_name = model or settings.model_realtime
+        lang = language or settings.language
+
+        engine = get_engine(model_name, dev, profile.compute_type, settings.model_cache_dir)
+        with transcribe_lock:
+            segments, tinfo = engine.transcribe(
+                tmp, language=lang, word_timestamps=word_timestamps, vad=vad
+            )
+            seg_list = [
+                {"start": float(s.start), "end": float(s.end), "text": s.text.strip()}
+                for s in segments
+            ]
+
+        text = " ".join(s["text"] for s in seg_list).strip()
+        corrected = False
+        if correct:
+            try:
+                text = rules.normalize(
+                    llm_correct.correct(
+                        text,
+                        base_url=settings.llm_base_url,
+                        api_key=settings.llm_api_key,
+                        model=settings.llm_model,
+                        max_chars=settings.llm_max_chars,
+                    )
+                )
+                corrected = True
+            except llm_correct.LLMNotConfigured as exc:
+                raise HTTPException(status.HTTP_400_BAD_REQUEST, f"correct=true but {exc}") from exc
+            except Exception as exc:  # noqa: BLE001
+                raise HTTPException(
+                    status.HTTP_502_BAD_GATEWAY, f"LLM correction failed: {exc}"
+                ) from exc
+
+        if response_format == "txt":
+            return PlainTextResponse(text)
+        if response_format == "srt":
+            return PlainTextResponse(formats.to_srt(seg_list))
+        if response_format == "vtt":
+            return PlainTextResponse(formats.to_vtt(seg_list))
+        return {
+            "text": text,
+            "segments": seg_list,
+            "language": getattr(tinfo, "language", None),
+            "model_used": model_name,
+            "corrected": corrected,
+            "duration_s": info.duration_s,
+        }
+    finally:
+        with contextlib.suppress(OSError):
+            os.remove(tmp)  # 프라이버시: 모든 종료경로에서 임시파일 삭제
+        file.file.close()

src/luke_scribe/api/schemas.py

@@ -0,0 +1,19 @@
+"""API 응답 스키마."""
+from __future__ import annotations
+
+from pydantic import BaseModel
+
+
+class Segment(BaseModel):
+    start: float
+    end: float
+    text: str
+
+
+class TranscribeResult(BaseModel):
+    text: str
+    segments: list[Segment]
+    language: str | None = None
+    model_used: str
+    corrected: bool = False
+    duration_s: float = 0.0

src/luke_scribe/cli.py

@@ -55,6 +55,8 @@ def transcribe(
     device: str = typer.Option("auto", help="auto|cpu|cuda"),
     word_timestamps: bool = typer.Option(False, "--word-timestamps"),
     vad: bool = typer.Option(True, "--vad/--no-vad", help="무음 제거"),
+    beam_size: int = typer.Option(None, "--beam-size", help="디코딩 빔(CPU 1~2 권장=속도↑)"),
+    correct: bool = typer.Option(False, "--correct", help="사내 LLM 보정(SCRIBE_LLM_* 설정 필요)"),
     timestamps: bool = typer.Option(False, "--timestamps", help="세그먼트 [start–end] 표시"),
 ) -> None:
     """단발 파일 전사 (faster-whisper, CPU/GPU 자동, AC-4 일부)."""
@@ -90,17 +92,45 @@ def transcribe(
     )
 
     engine = FasterWhisperEngine(model_name, dev, profile.compute_type, cache_dir=settings.model_cache_dir)
-    segments, tinfo = engine.transcribe(file, language=lang, word_timestamps=word_timestamps, vad=vad)
+    segments, tinfo = engine.transcribe(
+        file, language=lang, word_timestamps=word_timestamps, vad=vad,
+        beam_size=(beam_size or settings.beam_size),
+    )
 
-    count = 0
+    seg_list = []
     for seg in segments:
-        count += 1
+        seg_list.append({"start": seg.start, "end": seg.end, "text": seg.text.strip()})
+        if not correct:  # 스트리밍 출력(보정 시엔 전체를 모은 뒤 한 번에)
             if timestamps:
                 console.print(f"[cyan][{seg.start:6.2f}–{seg.end:6.2f}][/] {seg.text.strip()}")
             else:
                 console.print(seg.text.strip())
+
+    if correct:
+        from .postprocess import llm as llm_correct
+        from .postprocess import rules
+
+        text = " ".join(s["text"] for s in seg_list).strip()
+        try:
+            text = rules.normalize(
+                llm_correct.correct(
+                    text,
+                    base_url=settings.llm_base_url,
+                    api_key=settings.llm_api_key,
+                    model=settings.llm_model,
+                    max_chars=settings.llm_max_chars,
+                )
+            )
+        except llm_correct.LLMNotConfigured as exc:
+            console.print(f"[red]--correct:[/] {exc}")
+            raise typer.Exit(code=1) from exc
+        console.print(text)
+
     detected = getattr(tinfo, "language", None)
-    console.print(f"[green]✓ {count} segments · detected_lang={detected} · model_used={model_name}[/]")
+    console.print(
+        f"[green]✓ {len(seg_list)} segments · detected_lang={detected} · "
+        f"model_used={model_name} · corrected={correct}[/]"
+    )
 
 
 @app.command()
@@ -110,9 +140,49 @@ def bench(samples: str = typer.Option(None, help="라벨된 KO+EN 샘플 디렉
 
 
 @app.command()
-def serve() -> None:
+def serve(
-    """API 서버 (P2)."""
+    host: str = typer.Option(None, help="bind host (기본 설정값)"),
-    _todo("serve", "→ P2 (FastAPI + Redis/RQ)")
+    port: int = typer.Option(None, help="bind port (기본 설정값)"),
+    tunnel: str = typer.Option("none", help="none|cloudflare (Colab 외부 노출)"),
+) -> None:
+    """테스트 API 서버 (동기 transcribe + opt-in 보정). AC-1/11/12 일부."""
+    from .config import settings
+
+    try:
+        import uvicorn
+
+        from .api.app import create_app
+        from .api.deps import ensure_keys
+    except ImportError as exc:
+        console.print(f"[red]API 의존성 미설치:[/] {exc}\n→ `uv sync --extra api --extra engine`")
+        raise typer.Exit(code=1) from exc
+
+    bind_host = host or settings.host
+    bind_port = port or settings.port
+    key = ensure_keys()[0]
+    console.print(
+        f"[green]luke_scribe API[/] → http://{bind_host}:{bind_port}   "
+        f"(X-API-Key: [bold]{key}[/])"
+    )
+
+    proc = None
+    if tunnel == "cloudflare":
+        try:
+            from .connectivity.tunnel import start_cloudflared
+
+            proc, public = start_cloudflared(bind_port)
+            console.print(
+                f"[green]public:[/] {public}" if public
+                else "[yellow]cloudflared URL 미수신(계속 진행).[/]"
+            )
+        except Exception as exc:  # noqa: BLE001
+            console.print(f"[yellow]터널 실패(무시): {exc}[/]")
+
+    try:
+        uvicorn.run(create_app(), host=bind_host, port=bind_port, workers=1, log_level="info")
+    finally:
+        if proc is not None:
+            proc.terminate()
 
 
 def main() -> None:

src/luke_scribe/config.py

@@ -15,6 +15,7 @@ class Settings(BaseSettings):
     device: str = "auto"
     compute_type: str | None = None      # None=자동(cc/VRAM 기반)
     workers: int | None = None           # None=자동 산정
+    beam_size: int = 5                    # 디코딩 빔(CPU는 1~2 권장=속도↑, GPU는 5)
 
     # 언어 (기본 ko, 요청별 override)
     language: str = "ko"
@@ -34,5 +35,17 @@ class Settings(BaseSettings):
     # 모델 캐시 디렉터리 (None=HF 기본)
     model_cache_dir: str | None = None
 
+    # API 서버 (테스트 동기 API)
+    host: str = "127.0.0.1"
+    port: int = 8000
+
+    # LLM 보정 (opt-in, 사내/로컬 OpenAI 호환 백엔드)
+    llm_enabled: bool = False
+    llm_base_url: str | None = None      # 예: http://192.168.0.123:8080/v1 (allowlist=이 endpoint만)
+    llm_api_key: str | None = None       # env SCRIBE_LLM_API_KEY 로만 주입
+    llm_model: str = "copilot-gpt-4o"
+    # 보정 청크 크기(글자) — 사내 LLM 컨텍스트 창에 맞춰 조정 (예: ~8k창→1500, ~16k→3000, ~30k→6000)
+    llm_max_chars: int = 3000
+
 
 settings = Settings()

src/luke_scribe/connectivity/__init__.py

@@ -0,0 +1 @@
+"""외부 노출 — Colab 등 공인 IP 부재 환경 (스펙 §8). MVP: cloudflared quick tunnel."""

src/luke_scribe/connectivity/tunnel.py

@@ -0,0 +1,63 @@
+"""cloudflared quick tunnel (스펙 §8). 바이너리 없으면 캐시에 다운로드. best-effort.
+
+`serve --tunnel cloudflare` 가 호출 → 공개 https://<rand>.trycloudflare.com 발급(계정 불필요).
+"""
+from __future__ import annotations
+
+import os
+import platform
+import re
+import shutil
+import stat
+import subprocess
+import time
+import urllib.request
+
+_RELEASE = "https://github.com/cloudflare/cloudflared/releases/latest/download"
+_ASSETS = {
+    ("Linux", "x86_64"): "cloudflared-linux-amd64",
+    ("Linux", "aarch64"): "cloudflared-linux-arm64",
+}
+_URL_RE = re.compile(r"https://[-a-z0-9]+\.trycloudflare\.com")
+
+
+def ensure_cloudflared() -> str:
+    found = shutil.which("cloudflared")
+    if found:
+        return found
+    cache = os.path.expanduser("~/.cache/luke_scribe")
+    os.makedirs(cache, exist_ok=True)
+    path = os.path.join(cache, "cloudflared")
+    if os.path.exists(path):
+        return path
+    asset = _ASSETS.get((platform.system(), platform.machine()))
+    if not asset:
+        raise RuntimeError(
+            f"cloudflared 자동설치 미지원: {platform.system()}/{platform.machine()} "
+            "— 수동 설치 후 PATH에 두세요."
+        )
+    urllib.request.urlretrieve(f"{_RELEASE}/{asset}", path)  # noqa: S310
+    os.chmod(path, os.stat(path).st_mode | stat.S_IEXEC)
+    return path
+
+
+def start_cloudflared(port: int, timeout: float = 30.0) -> tuple[subprocess.Popen, str | None]:
+    """터널 프로세스 시작 → (proc, public_url). URL 못 받으면 url=None(프로세스는 유지)."""
+    binp = ensure_cloudflared()
+    proc = subprocess.Popen(  # noqa: S603
+        [binp, "tunnel", "--no-autoupdate", "--url", f"http://localhost:{port}"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True,
+    )
+    deadline = time.time() + timeout
+    while time.time() < deadline:
+        line = proc.stdout.readline() if proc.stdout else ""
+        if not line:
+            if proc.poll() is not None:
+                break
+            continue
+        m = _URL_RE.search(line)
+        if m:
+            return proc, m.group(0)
+    return proc, None

src/luke_scribe/postprocess/__init__.py

@@ -0,0 +1 @@
+"""후처리 — glossary/rules + (opt-in) LLM 보정 + confidence (스펙 §7)."""

src/luke_scribe/postprocess/llm.py

@@ -0,0 +1,138 @@
+"""LLM 보정 (스펙 §7 stage 3 / §3.8) — 음차된 영문 용어를 문맥+지식으로 복원.
+
+작은 컨텍스트 창 대응(사내 GPT-4o < 30k 토큰): 긴 전사는 **문장 경계로 청크 분할**,
+각 청크를 순차 보정하며 **이미 확정된 영문 표기(러닝 글로서리)** 를 다음 청크로 전달 →
+큰 창 없이도 강연 전체 용어 일관성 유지.
+
+OpenAI 호환 백엔드(사내/로컬). **opt-in**(요청 correct=true) · **allowlist**(설정 base_url만) ·
+**감사로그**(호출 요약 1줄). transient(연결 reset/timeout) 재시도.
+"""
+from __future__ import annotations
+
+import json
+import logging
+import re
+import time
+import urllib.error
+import urllib.request
+
+logger = logging.getLogger("luke_scribe.postprocess.llm")
+
+SYSTEM = (
+    "너는 한국어 STT 전사 후처리기다. 한국어 음성에 섞여 나온 영어 기술용어·고유명사가 "
+    "발음대로 한글로 음차되어 잘못 적힌 부분을 문맥과 지식으로 원래 영어 표기로 복원하라. "
+    "일반 한국어는 그대로 두고, 확실하지 않으면 바꾸지 마라. 설명 없이 교정된 전사문만 출력하라."
+)
+
+_SENT_RE = re.compile(r"(?<=[.!?。…\n])\s+")          # 문장 경계
+_TERM_RE = re.compile(r"[A-Za-z][A-Za-z0-9.+/#-]{1,}")  # 러닝 글로서리용 영문 토큰
+_GLOSSARY_CAP = 60
+
+
+class LLMNotConfigured(RuntimeError):
+    """llm_base_url / llm_api_key 미설정."""
+
+
+def _chunk(text: str, max_chars: int) -> list[str]:
+    """문장 경계로 max_chars 이하 청크 패킹. 한 문장이 과대하면 글자 단위 강제 분할."""
+    if len(text) <= max_chars:
+        return [text]
+    packed: list[str] = []
+    cur = ""
+    for part in _SENT_RE.split(text):
+        if not part:
+            continue
+        if cur and len(cur) + len(part) + 1 > max_chars:
+            packed.append(cur)
+            cur = part
+        else:
+            cur = f"{cur} {part}" if cur else part
+    if cur:
+        packed.append(cur)
+    out: list[str] = []
+    for c in packed:  # 안전망: 단일 문장이 너무 길면 글자 단위 강제 분할
+        if len(c) > max_chars:
+            out.extend(c[i : i + max_chars] for i in range(0, len(c), max_chars))
+        else:
+            out.append(c)
+    return out
+
+
+def _terms(text: str) -> list[str]:
+    seen: dict[str, None] = {}
+    for m in _TERM_RE.finditer(text):
+        seen.setdefault(m.group(0), None)
+    return list(seen)
+
+
+def _request(
+    messages: list[dict],
+    *,
+    url: str,
+    api_key: str,
+    model: str,
+    retries: int,
+    timeout: float,
+) -> str:
+    payload = {"model": model, "temperature": 0, "messages": messages}
+    req = urllib.request.Request(
+        url,
+        data=json.dumps(payload).encode(),
+        headers={"Content-Type": "application/json", "Authorization": "Bearer " + api_key},
+    )
+    for attempt in range(1, retries + 1):
+        try:
+            with urllib.request.urlopen(req, timeout=timeout) as resp:
+                return json.loads(resp.read())["choices"][0]["message"]["content"]
+        except urllib.error.HTTPError:
+            raise  # 실제 HTTP 응답(401/4xx) — 재시도 무의미
+        except (urllib.error.URLError, OSError):  # transient
+            if attempt == retries:
+                raise
+            time.sleep(1.0 * attempt)
+    raise RuntimeError("unreachable")
+
+
+def correct(
+    text: str,
+    *,
+    base_url: str | None,
+    api_key: str | None,
+    model: str = "copilot-gpt-4o",
+    max_chars: int = 3000,
+    retries: int = 4,
+    timeout: float = 90.0,
+) -> str:
+    """음차 영문 용어 복원. max_chars로 청크 분할(작은 컨텍스트 창 대응)."""
+    if not base_url or not api_key:
+        raise LLMNotConfigured("llm_base_url/llm_api_key 미설정 — correct에 SCRIBE_LLM_* 필요")
+    url = base_url.rstrip("/") + "/chat/completions"
+    chunks = _chunk(text, max_chars)
+    logger.info(
+        "llm-correct egress endpoint=%s model=%s chars=%d chunks=%d",
+        url, model, len(text), len(chunks),
+    )
+    glossary: dict[str, None] = {}
+    out: list[str] = []
+    for chunk in chunks:
+        system = SYSTEM
+        if glossary:
+            system += (
+                "\n이미 이 전사에서 확정된 영문 표기: "
+                + ", ".join(glossary)
+                + ". 같은/유사 용어는 이 표기로 통일하라."
+            )
+        corrected = _request(
+            [{"role": "system", "content": system}, {"role": "user", "content": chunk}],
+            url=url,
+            api_key=api_key,
+            model=model,
+            retries=retries,
+            timeout=timeout,
+        )
+        out.append(corrected)
+        for term in _terms(corrected):
+            glossary.setdefault(term, None)
+        if len(glossary) > _GLOSSARY_CAP:
+            glossary = dict(list(glossary.items())[-_GLOSSARY_CAP:])
+    return " ".join(out).strip()

src/luke_scribe/postprocess/rules.py

@@ -0,0 +1,18 @@
+"""결정적 정규화 (스펙 §7 stage 2). LLM 복원 뒤 정확한 표기로 보정.
+
+발견 노트: LLM이 'Embedding Gemma'로 복원 → rules가 공식 표기 'EmbeddingGemma'로 정규화.
+"""
+from __future__ import annotations
+
+# 기본 내장 맵 (config/glossary로 확장 가능)
+DEFAULT_RULES: dict[str, str] = {
+    "Embedding Gemma": "EmbeddingGemma",
+    "embedding gemma": "EmbeddingGemma",
+    "Google for developers": "Google for Developers",
+}
+
+
+def normalize(text: str, extra: dict[str, str] | None = None) -> str:
+    for src, dst in {**DEFAULT_RULES, **(extra or {})}.items():
+        text = text.replace(src, dst)
+    return text

src/luke_scribe/results/__init__.py

@@ -0,0 +1 @@
+"""결과 포맷·보관 (스펙 §4). MVP: 출력 포맷(txt/srt/vtt)."""

src/luke_scribe/results/formats.py

@@ -0,0 +1,45 @@
+"""세그먼트 → txt/srt/vtt 변환 (스펙 §4, AC-9). 세그먼트=dict{start,end,text}."""
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+Segment = dict  # {"start": float, "end": float, "text": str}
+
+
+def _hms(t: float) -> tuple[int, int, int, int]:
+    t = max(0.0, t)
+    h = int(t // 3600)
+    m = int((t % 3600) // 60)
+    s = int(t % 60)
+    ms = int(round((t - int(t)) * 1000))
+    if ms == 1000:  # 반올림 보정
+        ms, s = 0, s + 1
+    return h, m, s, ms
+
+
+def _ts_srt(t: float) -> str:
+    h, m, s, ms = _hms(t)
+    return f"{h:02d}:{m:02d}:{s:02d},{ms:03d}"
+
+
+def _ts_vtt(t: float) -> str:
+    h, m, s, ms = _hms(t)
+    return f"{h:02d}:{m:02d}:{s:02d}.{ms:03d}"
+
+
+def to_txt(segments: Sequence[Segment]) -> str:
+    return "\n".join(s["text"].strip() for s in segments)
+
+
+def to_srt(segments: Sequence[Segment]) -> str:
+    out: list[str] = []
+    for i, s in enumerate(segments, 1):
+        out += [str(i), f"{_ts_srt(s['start'])} --> {_ts_srt(s['end'])}", s["text"].strip(), ""]
+    return "\n".join(out).strip() + "\n"
+
+
+def to_vtt(segments: Sequence[Segment]) -> str:
+    out: list[str] = ["WEBVTT", ""]
+    for s in segments:
+        out += [f"{_ts_vtt(s['start'])} --> {_ts_vtt(s['end'])}", s["text"].strip(), ""]
+    return "\n".join(out).strip() + "\n"

tests/test_api.py

@@ -0,0 +1,86 @@
+"""API — FastAPI TestClient. 엔진은 monkeypatch(가짜)로 모델 로드 회피."""
+from __future__ import annotations
+
+from types import SimpleNamespace
+
+import pytest
+from fastapi.testclient import TestClient
+
+import luke_scribe.api.routes.transcribe as route
+from luke_scribe.api.app import create_app
+from luke_scribe.config import settings
+
+
+class _FakeSeg:
+    def __init__(self, start: float, end: float, text: str) -> None:
+        self.start = start
+        self.end = end
+        self.text = text
+
+
+class _FakeEngine:
+    def transcribe(self, _audio, **_kw):
+        return [_FakeSeg(0.0, 1.0, "안녕 vLLM"), _FakeSeg(1.0, 2.0, "두번째")], SimpleNamespace(
+            language="ko"
+        )
+
+
+@pytest.fixture
+def client(monkeypatch):
+    monkeypatch.setattr(route, "get_engine", lambda *a, **k: _FakeEngine())
+    monkeypatch.setattr(
+        route, "probe_media", lambda p: SimpleNamespace(path=p, duration_s=2.0, size_bytes=1234)
+    )
+    monkeypatch.setattr(settings, "api_keys", ["testkey"])
+    return TestClient(create_app())
+
+
+def _files():
+    return {"file": ("a.wav", b"RIFF0000WAVE", "audio/wav")}
+
+
+def test_health(client):
+    assert client.get("/health").json() == {"status": "ok"}
+
+
+def test_requires_key(client):
+    assert client.post("/v1/transcribe", files=_files()).status_code == 401
+
+
+def test_transcribe_ok(client):
+    r = client.post(
+        "/v1/transcribe", files=_files(), headers={"X-API-Key": "testkey"}, data={"language": "ko"}
+    )
+    assert r.status_code == 200
+    body = r.json()
+    assert body["segments"][0]["text"] == "안녕 vLLM"
+    assert body["model_used"]
+    assert body["corrected"] is False
+
+
+def test_413(client, monkeypatch):
+    monkeypatch.setattr(
+        route, "probe_media", lambda p: SimpleNamespace(path=p, duration_s=999999, size_bytes=1)
+    )
+    r = client.post("/v1/transcribe", files=_files(), headers={"X-API-Key": "testkey"})
+    assert r.status_code == 413
+
+
+def test_srt_format(client):
+    r = client.post(
+        "/v1/transcribe",
+        files=_files(),
+        headers={"X-API-Key": "testkey"},
+        data={"response_format": "srt"},
+    )
+    assert r.status_code == 200
+    assert "00:00:00,000 --> 00:00:01,000" in r.text
+
+
+def test_correct_path(client, monkeypatch):
+    monkeypatch.setattr(route.llm_correct, "correct", lambda text, **k: text + " [보정]")
+    r = client.post(
+        "/v1/transcribe", files=_files(), headers={"X-API-Key": "testkey"}, data={"correct": "true"}
+    )
+    assert r.status_code == 200
+    assert r.json()["corrected"] is True

tests/test_formats.py

@@ -0,0 +1,25 @@
+"""results.formats — txt/srt/vtt."""
+from __future__ import annotations
+
+from luke_scribe.results import formats
+
+SEGS = [
+    {"start": 0.0, "end": 1.5, "text": "안녕 world"},
+    {"start": 1.5, "end": 3.0, "text": "두번째"},
+]
+
+
+def test_txt():
+    assert formats.to_txt(SEGS) == "안녕 world\n두번째"
+
+
+def test_srt():
+    out = formats.to_srt(SEGS)
+    assert "1\n00:00:00,000 --> 00:00:01,500\n안녕 world" in out
+    assert "2\n00:00:01,500 --> 00:00:03,000\n두번째" in out
+
+
+def test_vtt():
+    out = formats.to_vtt(SEGS)
+    assert out.startswith("WEBVTT")
+    assert "00:00:00.000 --> 00:00:01.500" in out

tests/test_postprocess.py

@@ -0,0 +1,59 @@
+"""postprocess.rules / postprocess.llm (urllib monkeypatch)."""
+from __future__ import annotations
+
+import json
+
+import pytest
+
+from luke_scribe.postprocess import llm, rules
+
+
+def test_rules_normalize():
+    assert rules.normalize("구글 Embedding Gemma 소개") == "구글 EmbeddingGemma 소개"
+    assert rules.normalize("그대로") == "그대로"
+
+
+def test_llm_not_configured():
+    with pytest.raises(llm.LLMNotConfigured):
+        llm.correct("x", base_url=None, api_key=None)
+
+
+class _FakeResp:
+    def __init__(self, payload: dict) -> None:
+        self._p = payload
+
+    def read(self) -> bytes:
+        return json.dumps(self._p).encode()
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *_a):
+        return False
+
+
+def test_llm_correct_monkeypatched(monkeypatch):
+    def fake_urlopen(_req, timeout=90):  # noqa: ARG001
+        return _FakeResp({"choices": [{"message": {"content": "EmbeddingGemma 복원됨"}}]})
+
+    monkeypatch.setattr(llm.urllib.request, "urlopen", fake_urlopen)
+    out = llm.correct("인베딩 점마", base_url="http://x/v1", api_key="k", model="m")
+    assert out == "EmbeddingGemma 복원됨"
+
+
+def test_llm_chunking_and_glossary(monkeypatch):
+    """긴 입력 → 청크 분할 + 러닝 글로서리(작은 컨텍스트 창 대응)."""
+    calls: list[list[dict]] = []
+
+    def fake_request(messages, **_kw):
+        calls.append(messages)
+        return messages[1]["content"]  # 청크 그대로 echo
+
+    monkeypatch.setattr(llm, "_request", fake_request)
+    long_text = ". ".join(f"문장{i} EmbeddingGemma 설명" for i in range(400))
+    out = llm.correct(long_text, base_url="http://x/v1", api_key="k", max_chars=200)
+
+    assert len(calls) > 1  # 분할됨
+    assert "EmbeddingGemma" in out  # 재조립됨
+    # 2번째 청크부터 이전에 확정된 영문 표기가 system에 주입됨
+    assert any("확정된 영문 표기" in m[0]["content"] for m in calls[1:])

uv.lock

@@ -521,7 +521,7 @@ name = "cuda-bindings"
 version = "13.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "cuda-pathfinder" },
+    { name = "cuda-pathfinder", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
 ]
 wheels = [
     { url = "https://files.pythonhosted.org/packages/51/6b/457ca12dad3ee9bfcc9a545cfd6b64b359ba49de40f776f6e028e678f262/cuda_bindings-13.3.1-cp311-cp311-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:c5879712accf6e14bb01aa5e67440eb84998b8d104b509cc7a6dc0b8f656a474", size = 6053539, upload-time = "2026-05-29T23:11:43.19Z" },
@@ -554,34 +554,34 @@ wheels = [
 
 [package.optional-dependencies]
 cudart = [
-    { name = "nvidia-cuda-runtime", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cuda-runtime", marker = "sys_platform == 'linux'" },
 ]
 cufft = [
-    { name = "nvidia-cufft", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cufft", marker = "sys_platform == 'linux'" },
 ]
 cufile = [
     { name = "nvidia-cufile", marker = "sys_platform == 'linux'" },
 ]
 cupti = [
-    { name = "nvidia-cuda-cupti", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cuda-cupti", marker = "sys_platform == 'linux'" },
 ]
 curand = [
-    { name = "nvidia-curand", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-curand", marker = "sys_platform == 'linux'" },
 ]
 cusolver = [
-    { name = "nvidia-cusolver", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cusolver", marker = "sys_platform == 'linux'" },
 ]
 cusparse = [
-    { name = "nvidia-cusparse", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cusparse", marker = "sys_platform == 'linux'" },
 ]
 nvjitlink = [
-    { name = "nvidia-nvjitlink", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-nvjitlink", marker = "sys_platform == 'linux'" },
 ]
 nvrtc = [
-    { name = "nvidia-cuda-nvrtc", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-cuda-nvrtc", marker = "sys_platform == 'linux'" },
 ]
 nvtx = [
-    { name = "nvidia-nvtx", marker = "sys_platform == 'linux' or sys_platform == 'win32'" },
+    { name = "nvidia-nvtx", marker = "sys_platform == 'linux'" },
 ]
 
 [[package]]
@@ -1384,8 +1384,7 @@ dependencies = [
 [package.optional-dependencies]
 api = [
     { name = "fastapi" },
-    { name = "redis" },
+    { name = "python-multipart" },
-    { name = "rq" },
     { name = "uvicorn", extra = ["standard"] },
 ]
 diarize = [
@@ -1402,9 +1401,14 @@ gpu = [
 llm = [
     { name = "openai" },
 ]
+queue = [
+    { name = "redis" },
+    { name = "rq" },
+]
 
 [package.dev-dependencies]
 dev = [
+    { name = "httpx" },
     { name = "pytest" },
     { name = "ruff" },
 ]
@@ -1423,16 +1427,18 @@ requires-dist = [
     { name = "pyannote-audio", marker = "extra == 'diarize'", specifier = ">=3.1" },
     { name = "pydantic", specifier = ">=2.7" },
     { name = "pydantic-settings", specifier = ">=2.3" },
-    { name = "redis", marker = "extra == 'api'", specifier = ">=5.0" },
+    { name = "python-multipart", marker = "extra == 'api'", specifier = ">=0.0.9" },
+    { name = "redis", marker = "extra == 'queue'", specifier = ">=5.0" },
     { name = "rich", specifier = ">=13.7" },
-    { name = "rq", marker = "extra == 'api'", specifier = ">=1.16" },
+    { name = "rq", marker = "extra == 'queue'", specifier = ">=1.16" },
     { name = "typer", specifier = ">=0.12" },
     { name = "uvicorn", extras = ["standard"], marker = "extra == 'api'", specifier = ">=0.29" },
 ]
-provides-extras = ["engine", "gpu", "api", "diarize", "llm"]
+provides-extras = ["engine", "gpu", "api", "queue", "diarize", "llm"]
 
 [package.metadata.requires-dev]
 dev = [
+    { name = "httpx", specifier = ">=0.27" },
     { name = "pytest", specifier = ">=8.2" },
     { name = "ruff", specifier = ">=0.5" },
 ]
@@ -1836,7 +1842,7 @@ name = "nvidia-cublas"
 version = "13.1.1.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "nvidia-cuda-nvrtc" },
+    { name = "nvidia-cuda-nvrtc", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
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 version = "9.20.0.48"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "nvidia-cublas" },
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@@ -1923,7 +1929,7 @@ name = "nvidia-cufft"
 version = "12.0.0.61"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "nvidia-nvjitlink" },
+    { name = "nvidia-nvjitlink", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
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@@ -1953,9 +1959,9 @@ name = "nvidia-cusolver"
 version = "12.0.4.66"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "nvidia-cublas" },
+    { name = "nvidia-cublas", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
-    { name = "nvidia-cusparse" },
+    { name = "nvidia-cusparse", marker = "sys_platform != 'emscripten' and sys_platform != 'win32'" },
-    { name = "nvidia-nvjitlink" },
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@@ -1967,7 +1973,7 @@ name = "nvidia-cusparse"
 version = "12.6.3.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "nvidia-nvjitlink" },
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+wheels = [
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+
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 name = "pytorch-lightning"
 version = "2.6.5"