Add LLDP collect retry for failed and weak-evidence NEs.

Mirror config-sync retry_failed so operators can re-collect hard failures and empty/stub LLDP results without re-running the full scope.

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

netx_api/lldp_collect_schemas.py

@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 from datetime import datetime
-from typing import Any
+from typing import Any, Literal
 
 from pydantic import BaseModel, Field
 
@@ -43,6 +43,8 @@ class LldpCollectJobSummary(BaseModel):
     status: str = ""
     total: int = 0
     done: int = 0
+    success_count: int = 0
+    fail_count: int = 0
     edges_added: int = 0
     edges_updated: int = 0
     edges_stale: int = 0  # legacy alias of edges_missing
@@ -66,6 +68,11 @@ class LldpCollectDashboardOut(BaseModel):
     next_due_at: datetime | None = None
 
 
+class LldpCollectStartBody(BaseModel):
+    mode: Literal["full", "retry_failed"] = "full"
+    job_id: str | None = None
+
+
 class LldpCollectStartOut(BaseModel):
     ok: bool = True
     job: dict[str, Any] = Field(default_factory=dict)