fix: ansible routes validation, SSE dedup, scoped querySelector, status_color fallback

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

fablednetmon/ansible/routes.py

@@ -1,5 +1,6 @@
 # fablednetmon/ansible/routes.py
 from __future__ import annotations
+import asyncio
 import uuid
 from datetime import datetime, timezone
 from pathlib import Path
@@ -77,6 +78,9 @@ async def create_run():
     source_name = form.get("source_name", "").strip()
     inventory_path = form.get("inventory_path", "").strip()
 
+    if not playbook_path or not inventory_path:
+        return "playbook_path and inventory_path are required", 400
+
     all_sources = _get_sources()
     source = next((s for s in all_sources if s["name"] == source_name), None)
     if source is None:
@@ -98,8 +102,7 @@ async def create_run():
         async with db.begin():
             db.add(run)
 
-    import asyncio
-    asyncio.create_task(
+    task = asyncio.create_task(
         executor.start_run(
             current_app._get_current_object(),  # type: ignore[attr-defined]
             run_id,
@@ -108,6 +111,11 @@ async def create_run():
             source["path"],
         )
     )
+    task.add_done_callback(
+        lambda t: t.exception() and current_app.logger.error(
+            "Ansible run %s raised: %s", run_id, t.exception()
+        )
+    )
 
     return await render_template(
         "ansible/run_started.html",