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/schemas.py

@@ -161,15 +161,19 @@ class IngestResponse(BaseModel):
 
 class ParserProfileCreate(BaseModel):
     name: str = Field(min_length=1, max_length=255)
+    kind: str = Field(default="heuristic", pattern="^(heuristic|llm)$")
     sample_post: str = ""
     heuristic_profile: dict[str, Any] | None = None
+    llm_profile: dict[str, Any] | None = None
     status: str | None = None
 
 
 class ParserProfileUpdate(BaseModel):
     name: str | None = Field(default=None, min_length=1, max_length=255)
+    kind: str | None = Field(default=None, pattern="^(heuristic|llm)$")
     sample_post: str | None = None
     heuristic_profile: dict[str, Any] | None = None
+    llm_profile: dict[str, Any] | None = None
     status: str | None = None
 
 
@@ -178,8 +182,10 @@ class ParserProfileRead(BaseModel):
 
     id: int
     name: str
+    kind: str = "heuristic"
     sample_post: str
     heuristic_profile: dict[str, Any] | None
+    llm_profile: dict[str, Any] | None = None
     status: str
     created_at: datetime