feat: add markers/profiles/labels API endpoints

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

server/routes/markers.py

@@ -1,3 +1,27 @@
-from fastapi import APIRouter
+from fastapi import APIRouter, Query
 
 router = APIRouter()
+
+
+def _db():
+    from ..app import db
+    return db
+
+
+@router.get("/markers/{filename}")
+def get_markers(filename: str, profile: str = Query("default")):
+    markers = _db().get_markers(filename, profile)
+    return [
+        {"start_time": t, "marker_number": n, "output_path": p}
+        for t, n, p in markers
+    ]
+
+
+@router.get("/profiles")
+def get_profiles():
+    return _db().get_profiles()
+
+
+@router.get("/labels")
+def get_labels():
+    return _db().get_labels()