Phase 3: Department Interpretation — Directing + Cinematography per scene

Layer 4 implementation:
- Per-scene directing: scene_objective, audience_takeaway, pacing, dramatic
  beats, subtext, continuity considerations
- Per-scene cinematography: camera style, lens, movement, framing, DoF,
  color palette, visual emphasis, continuity considerations
- All interpretation grounded in L2 scene data + L3 Production Bible
- Bible entries passed as context per scene (matching characters + location)
- Validator: empty fields, broken refs, bible ref checks, uncertain values
- Per-scene versioned output + combined department_interpretation_v1.json
- CLI: --phase 3, --scene N for single-scene re-run

Tested on the_last_backup: 12/12 scenes valid, 0 failures, 5 warnings
(false positives from prop names in all-caps like BLACK PORTABLE SSD)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

run.py

@@ -14,7 +14,7 @@ def main():
     parser = argparse.ArgumentParser(description="AI Movie Production Pipeline")
     parser.add_argument("--script", type=str, help="Path to .fountain script file (Phase 1)")
     parser.add_argument("--project", type=str, help="Project name (determines output directory)")
-    parser.add_argument("--phase", type=int, default=None, choices=[1, 2], help="Run specific phase only (1=ingestion+extraction, 2=bible)")
+    parser.add_argument("--phase", type=int, default=None, choices=[1, 2, 3], help="Run specific phase (1=extraction, 2=bible, 3=departments)")
     parser.add_argument("--model", type=str, default="qwen3:14b", help="Model ID (default: qwen3:14b)")
     parser.add_argument("--backend", type=str, default="ollama", choices=["ollama", "anthropic"], help="AI backend (default: ollama)")
     parser.add_argument("--ollama-url", type=str, default="http://localhost:11434", help="Ollama server URL")
@@ -40,6 +40,7 @@ def main():
 
     run_phase1_flag = args.phase is None or args.phase == 1
     run_phase2_flag = args.phase is None or args.phase == 2
+    run_phase3_flag = args.phase is None or args.phase == 3
 
     # Phase 1: Script Ingestion + Understanding
     if run_phase1_flag:
@@ -88,6 +89,25 @@ def main():
             print(f"\nPHASE 2 FAILED: {bible_result.stop_reason}")
             sys.exit(1)
 
+    # Phase 3: Department Interpretation
+    if run_phase3_flag:
+        from src.departments.runner import run_phase3
+
+        dept_result = run_phase3(
+            project_name=args.project,
+            model=args.model,
+            backend=args.backend,
+            ollama_url=args.ollama_url,
+            api_key=api_key,
+            output_dir=args.output_dir,
+            scene_filter=args.scene,
+            dry_run=args.dry_run,
+        )
+
+        if not dept_result.success:
+            print(f"\nPHASE 3 FAILED: {dept_result.stop_reason}")
+            sys.exit(1)
+
     print("\nPIPELINE COMPLETE")
     sys.exit(0)