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/router.py

@@ -209,28 +209,36 @@ async def put_config(body: dict, user: dict = Depends(current_user)):
 @router.post("/open")
 async def open_file(body: dict, user: dict = Depends(current_user)):
     import subprocess, shutil
-    path = body.get("path", "")
     user_dir = os.path.join(user["output_dir"], user["username"])
-    if not (path and os.path.exists(path) and os.path.abspath(path).startswith(os.path.abspath(user_dir))):
+    abs_user_dir = os.path.abspath(user_dir)
+
+    # Accept either a single path or a list of paths (for 3-file recordings)
+    raw_paths = body.get("paths") or ([body.get("path")] if body.get("path") else [])
+    paths = [p for p in raw_paths if p and os.path.exists(p) and os.path.abspath(p).startswith(abs_user_dir)]
+    if not paths:
         return {"ok": False}
+
     mode = body.get("mode", "editor")  # "editor" | "folder" | "obsidian"
     if mode == "obsidian":
         from urllib.parse import quote
         cfg = load_config()
         vault = cfg.get("obsidian", {}).get("vault", "").strip()
-        if vault and os.path.isdir(vault):
-            dest = os.path.join(vault, os.path.basename(path))
-            shutil.copy2(path, dest)
-            target = dest
-        else:
-            target = path
-        subprocess.Popen(["xdg-open", f"obsidian://open?path={quote(target, safe='/')}"])
+        open_target = paths[0]
+        for p in paths:
+            if vault and os.path.isdir(vault):
+                dest = os.path.join(vault, os.path.basename(p))
+                shutil.copy2(p, dest)
+                if p == paths[0]:
+                    open_target = dest
+            else:
+                open_target = p
+        subprocess.Popen(["xdg-open", f"obsidian://open?path={quote(open_target, safe='/')}"])
     elif mode == "folder" and shutil.which("dolphin"):
-        subprocess.Popen(["dolphin", "--select", path])
+        subprocess.Popen(["dolphin", "--select", paths[0]])
     elif mode == "folder":
-        subprocess.Popen(["xdg-open", os.path.dirname(path)])
+        subprocess.Popen(["xdg-open", os.path.dirname(paths[0])])
     else:
-        subprocess.Popen(["xdg-open", path])
+        subprocess.Popen(["xdg-open", paths[0]])
     return {"ok": True}