Add reusable LLM parser profiles with multi-event extract.

Support kind=llm profiles (instruction/schema), optional multi-event posts via #eN URLs, and recover stale running/queued parse jobs after worker crashes.

Co-authored-by: Cursor <cursoragent@cursor.com>

centers/analytics/api/app/services/jobs.py

@@ -33,6 +33,25 @@ def flatten_pair_config(
     limit: int = 100,
 ) -> dict:
     """Expand Profile + Channel into Redis/CP source_config."""
+    kind = (profile.kind or "heuristic").strip().lower()
+    if kind == "llm":
+        from contracts.llm_profile import LlmProfile
+
+        if not profile.llm_profile:
+            raise ValueError("ParserProfile.llm_profile is empty")
+        llm = LlmProfile.model_validate(profile.llm_profile)
+        cfg = TelegramSourceConfig(
+            channel=channel.channel.strip(),
+            limit=limit,
+            extract_mode="llm",
+            extract_schema=llm.extract_schema,
+            instruction=llm.instruction,
+            required_fields=list(llm.required_fields),
+            multi_event=bool(llm.multi_event),
+            sample_post=profile.sample_post or None,
+        )
+        return cfg.model_dump()
+
     if not profile.heuristic_profile:
         raise ValueError("ParserProfile.heuristic_profile is empty")
     cfg = TelegramSourceConfig(