feat(ops): add managed NE management and batch CLI collection

Introduce workbench operations for multi-vendor NE CRUD/connect-test and Netmiko batch collection with job lifecycle controls, log downloads, and paginated run filters.

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

netx_api/collection_schemas.py

@@ -0,0 +1,41 @@
+from __future__ import annotations
+
+from datetime import datetime
+
+from pydantic import BaseModel, Field
+
+
+class CollectionJobCreate(BaseModel):
+    title: str = ""
+    commands: str = Field(min_length=1)
+    ne_ids: list[str] = Field(min_length=1)
+
+
+class CollectionRunOut(BaseModel):
+    id: str
+    job_id: str
+    ne_id: str
+    ne_name: str
+    ne_ip: str
+    status: str
+    message: str
+    output_rel_path: str
+    has_output: bool
+    started_at: datetime | None
+    ended_at: datetime | None
+
+
+class CollectionJobOut(BaseModel):
+    id: str
+    title: str
+    commands: str
+    status: str
+    ne_count: int
+    success_count: int
+    fail_count: int
+    output_count: int = 0
+    error_message: str
+    created_at: datetime
+    started_at: datetime | None
+    ended_at: datetime | None
+    last_run_at: datetime | None = None