Case sync: refresh remote URL with current token before each push

Cases failed to push silently after the Gitea token in Infisical was
rotated: the embedded credential in each case repo's origin URL was
the old token, the rotation never propagated, and capture_output=True
hid the auth failure as a logger.warning. Three cases (1033-25,
1130-25, 1194-25) accumulated unpushed commits over weeks before
this was noticed.

Fixes the root cause in two places: web/gitea_client.py for uploads
through the FastAPI endpoint, and mcp-server/services/git_sync.py
for case_update / document_upload through MCP tools (which previously
committed but never pushed at all).

The new commit_and_push helper:
- re-injects the current GITEA_ACCESS_TOKEN into the existing origin
  URL on every call, so pushes survive token rotation
- logs push failures at WARNING with the actual stderr (the previous
  code suppressed errors entirely)
- continues to push even when the commit was a no-op, in case earlier
  commits are still unpushed

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

mcp-server/src/legal_mcp/tools/documents.py

@@ -4,12 +4,11 @@ from __future__ import annotations
 
 import json
 import shutil
-import subprocess
 from pathlib import Path
 from uuid import UUID
 
 from legal_mcp import config
-from legal_mcp.services import db, processor
+from legal_mcp.services import db, git_sync, processor
 
 
 async def document_upload(
@@ -67,11 +66,10 @@ async def document_upload(
             await db.update_document(UUID(doc["id"]), doc_type=classified_type)
             doc["doc_type"] = classified_type
 
-    # Git commit (best-effort — don't fail upload on git errors)
+    # Git commit + push (best-effort — don't fail upload on git errors)
     try:
         repo_dir = config.find_case_dir(case_number)
         if repo_dir.exists():
-            subprocess.run(["git", "add", "."], cwd=repo_dir, capture_output=True)
             doc_type_hebrew = {
                 "appeal": "כתב ערר",
                 "response": "תשובה",
@@ -85,14 +83,7 @@ async def document_upload(
                 "exhibit": "נספח",
                 "reference": "מסמך עזר",
             }.get(actual_doc_type, actual_doc_type)
-            subprocess.run(
-                ["git", "commit", "-m", f"הוספת {doc_type_hebrew}: {title}"],
-                cwd=repo_dir,
-                capture_output=True,
-                env={"GIT_AUTHOR_NAME": "Ezer Mishpati", "GIT_AUTHOR_EMAIL": "legal@local",
-                     "GIT_COMMITTER_NAME": "Ezer Mishpati", "GIT_COMMITTER_EMAIL": "legal@local",
-                     "PATH": "/usr/bin:/bin"},
-            )
+            git_sync.commit_and_push(repo_dir, f"הוספת {doc_type_hebrew}: {title}")
     except Exception:
         pass  # git not available in container — non-critical