feat: add post-diarization speaker mapping workflow

src/meeting_lab/orchestration/mvp.py

@@ -71,6 +71,64 @@ class MvpRunResult:
     protocol_path: Path | None
 
 
+def regenerate_mvp_protocol(
+    run_dir: Path,
+    *,
+    meeting_context: ContextInput,
+    model: str = DEFAULT_MODEL,
+    ollama_endpoint: str = DEFAULT_ENDPOINT,
+    protocol_num_ctx: int = DEFAULT_NUM_CTX,
+    protocol_safe_input_token_budget: int = DEFAULT_SAFE_INPUT_TOKEN_BUDGET,
+    progress_sink: ProgressSink | None = None,
+) -> MvpRunResult:
+    """Regenerate only protocol artifacts from an existing completed run."""
+    started = time.perf_counter()
+    run_dir = Path(run_dir)
+    context = _effective_context(meeting_context)
+    if context is None:
+        raise ValueError("Meeting Context is required for protocol regeneration.")
+    if protocol_num_ctx <= 0:
+        raise ValueError("Protocol Ollama context size must be positive.")
+    if protocol_safe_input_token_budget <= 0:
+        raise ValueError("Protocol safe input token budget must be positive.")
+
+    diarized_transcript = run_dir / "diarization" / "transcript_diarized.json"
+    plain_transcript = run_dir / "transcript" / "transcript.json"
+    transcript_path = (
+        diarized_transcript if diarized_transcript.is_file() else plain_transcript
+    )
+    if not transcript_path.is_file():
+        raise FileNotFoundError(
+            f"Existing run has no protocol transcript artifact: {run_dir}"
+        )
+
+    context_path = run_dir / "context" / "meeting_context.yaml"
+    write_meeting_context(context, context_path)
+    _emit(progress_sink, "protocol_generation", "started", started)
+    try:
+        result = generate_direct_protocol(
+            transcript_path,
+            context_path,
+            model=model,
+            endpoint=ollama_endpoint,
+            num_ctx=protocol_num_ctx,
+            safe_input_token_budget=protocol_safe_input_token_budget,
+        )
+        protocol_path = _persist_protocol(run_dir, result)
+    except Exception as exc:
+        _emit(
+            progress_sink,
+            "failed",
+            "failed",
+            started,
+            message=f"protocol_generation: {type(exc).__name__}: {exc}",
+        )
+        raise
+    _emit(progress_sink, "protocol_generation", "completed", started)
+    _emit(progress_sink, "completed", "completed", started)
+    return MvpRunResult(0, run_dir, protocol_path)
+
+
 def create_unique_run_dir(
     output_root: Path,
     meeting_name: str,