feat: write 3 files per solo recording (index + transkript + zusammenfassung)

- pipeline: call write_solo_docs() instead of save_transcript(); broadcast paths dict
- router: /open accepts paths list for Obsidian mode, copies all 3 files to vault
- app.js: store _modalPaths from saved event; Obsidian button sends all paths
- tests: test_write_solo_docs_creates_three_files added

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/pipeline.py

@@ -10,7 +10,7 @@ from api.router import broadcast
 from config import load as load_config
 from transcription import engine as transcription_engine
 from llm import OllamaClient
-from output import save_transcript, write_meeting_docs
+from output import write_solo_docs, write_meeting_docs
 
 logger = logging.getLogger(__name__)
 
@@ -80,15 +80,22 @@ async def _run_solo_pipeline(cfg, wav_path, output_dir, instructions):
         model=cfg["ollama"]["model"],
     )
 
+    dt = datetime.now()
+    paths = write_solo_docs(raw_text=raw_text, refined=refined, output_dir=output_dir, dt=dt)
+
     title = "Diktat"
     for line in refined.splitlines():
         if line.startswith("# "):
             title = line[2:].strip()
             break
 
-    path = save_transcript(title=title, content=refined, output_dir=output_dir)
-    await broadcast({"event": "saved", "path": path, "title": title})
     await state.set_status(Status.IDLE)
+    await broadcast({
+        "event": "saved",
+        "path": paths["index"],
+        "title": title,
+        "paths": paths,
+    })
 
 
 async def _run_meeting_pipeline(cfg, wav_path, output_dir, instructions, diar_cfg):