fix(appraiser-facts): route extraction through analyst wakeup (was silent 0)

The "חלץ עובדות שמאיות" UI button hit POST /api/cases/{n}/extract-appraiser-facts
which called appraiser_facts_extractor inline — that shells out to the local
`claude` CLI, which is absent in the Coolify container, so every doc errored,
the per-doc try/except swallowed it, and the response was "completed, 0 facts".

Refactored the endpoint to wake the legal-analyst of the correct company via
Paperclip (same pattern as wake_curator_for_final), and surface
extraction_failed instead of "completed" when every doc errored.

mcp-server/src/legal_mcp/services/appraiser_facts_extractor.py

@@ -250,8 +250,19 @@ async def extract_appraiser_facts(case_id: UUID) -> dict:
 
     conflicts = await db.detect_appraiser_conflicts(case_id)
 
+    # Don't swallow extractor failures: if every appraisal errored and no
+    # facts were extracted, surface that as a distinct status instead of
+    # the misleading "completed, 0 facts" we used to return — the caller
+    # (and the UI) need to know that nothing actually ran.
+    all_errored = (
+        total_facts == 0
+        and by_doc
+        and all(d.get("status") == "error" for d in by_doc)
+    )
+    status = "extraction_failed" if all_errored else "completed"
+
     return {
-        "status": "completed",
+        "status": status,
         "appraisal_count": len(appraisals),
         "total_facts": total_facts,
         "conflicts": conflicts,