Handle missing origin remote in git store pull operation (#6398)

Add AttributeError to the exception handler in the git pull operation.
This catches the case where a repository exists but has no 'origin'
remote configured, which can happen if the remote was renamed or
deleted by the user or due to repository corruption.

When this error occurs, it now creates a CORRUPT_REPOSITORY issue with
an EXECUTE_RESET suggestion, triggering the auto-fix mechanism to
re-clone the repository.

Fixes SUPERVISOR-69Z
Fixes SUPERVISOR-172C

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <noreply@anthropic.com>

tests/store/test_repository_git.py

@@ -3,13 +3,14 @@
 from __future__ import annotations
 
 from pathlib import Path
-from unittest.mock import AsyncMock, patch
+from unittest.mock import AsyncMock, MagicMock, patch
 
 from git import GitCommandError, InvalidGitRepositoryError, NoSuchPathError
 import pytest
 
 from supervisor.coresys import CoreSys
 from supervisor.exceptions import StoreGitCloneError, StoreGitError
+from supervisor.resolution.const import ContextType, IssueType, SuggestionType
 from supervisor.store.git import GitRepo
 
 REPO_URL = "https://github.com/awesome-developer/awesome-repo"
@@ -119,3 +120,38 @@ async def test_git_load_error(coresys: CoreSys, tmp_path: Path, git_errors: Exce
         await repo.load()
 
     assert len(coresys.resolution.suggestions) == 0
+
+
+@pytest.mark.usefixtures("supervisor_internet")
+async def test_git_pull_missing_origin_remote(coresys: CoreSys, tmp_path: Path):
+    """Test git pull with missing origin remote creates reset suggestion.
+
+    This tests the scenario where a repository exists but has no 'origin' remote,
+    which can happen if the remote was renamed or deleted. The pull operation
+    should create a CORRUPT_REPOSITORY issue with EXECUTE_RESET suggestion.
+
+    Fixes: SUPERVISOR-69Z, SUPERVISOR-172C
+    """
+    repo = GitRepo(coresys, tmp_path, REPO_URL)
+
+    # Create a mock git repo without an origin remote
+    mock_repo = MagicMock()
+    mock_repo.remotes = []  # Empty remotes list - no 'origin'
+    mock_repo.active_branch.name = "main"
+    repo.repo = mock_repo
+
+    with (
+        patch("git.Git") as mock_git,
+        pytest.raises(StoreGitError),
+    ):
+        mock_git.return_value.ls_remote = MagicMock()
+        await repo.pull.__wrapped__(repo)
+
+    # Verify resolution issue was created
+    assert len(coresys.resolution.issues) == 1
+    assert coresys.resolution.issues[0].type == IssueType.CORRUPT_REPOSITORY
+    assert coresys.resolution.issues[0].context == ContextType.STORE
+
+    # Verify reset suggestion was created
+    assert len(coresys.resolution.suggestions) == 1
+    assert coresys.resolution.suggestions[0].type == SuggestionType.EXECUTE_RESET