Optimize sync_test.go: eliminate redundant git init calls

- Add setupGitRepo(), setupGitRepoWithBranch(), and setupMinimalGitRepo() helpers
- Refactor 19 test functions to use shared git repo setup
- Reduces duplicate git initialization boilerplate by ~300 lines
- All tests pass with improved maintainability

Related to bd-ktng

.beads/beads.jsonl

@@ -41,7 +41,7 @@
 {"id":"bd-hdt","content_hash":"8e6cf1653ef2ea583b39a421b3d708763ab7c042d6cd494e77202a92af0a7398","title":"Implement auto-merge functionality in duplicates command","description":"The duplicates.go file has a TODO at line 95 to implement the performMerge function for automatic duplicate merging. Currently it just prints a warning message. This would automate the merge process instead of just suggesting commands.","status":"open","priority":2,"issue_type":"feature","created_at":"2025-11-21T18:55:02.828619-05:00","updated_at":"2025-11-21T18:55:02.828619-05:00","source_repo":"."}
 {"id":"bd-j3zt","content_hash":"531ad51101f41375a93d66b8d22105ce7c4913261db78b662bb759e802bc01e2","title":"Fix mypy errors in beads-mcp","description":"Running `mypy .` in `integrations/beads-mcp` reports 287 errors. These should be addressed to improve type safety and code quality.","status":"open","priority":3,"issue_type":"task","created_at":"2025-11-20T18:53:28.557708-05:00","updated_at":"2025-11-20T18:53:28.557708-05:00","source_repo":"."}
 {"id":"bd-koab","content_hash":"1b5e9a3a60f61472698af52ab6b2cbe46c839660900e7da3b562d9c3d5c608f6","title":"Import should continue on FOREIGN KEY constraint violations from deletions","description":"# Problem\n\nWhen importing JSONL after a merge that includes deletions, we may encounter FOREIGN KEY constraint violations if:\n- Issue A was deleted in one branch\n- Issue B (that depends on A) was modified in another branch  \n- The merge keeps the deletion of A and the modification of B\n- Import tries to import B with a dependency/reference to deleted A\n\nCurrently import fails completely on such constraint violations, requiring manual intervention.\n\n# Solution\n\nAdd IsForeignKeyConstraintError() helper similar to IsUniqueConstraintError()\n\nUpdate import code to:\n1. Detect FOREIGN KEY constraint violations\n2. Log a warning with the issue ID and constraint\n3. Continue importing remaining issues\n4. Report summary of skipped issues at the end\n\n# Implementation Notes\n\n- Add to internal/storage/sqlite/util.go\n- Pattern: strings.Contains(err.Error(), \"FOREIGN KEY constraint failed\")\n- Update importer to handle these errors gracefully\n- Keep track of skipped issues for summary reporting","notes":"## Progress\n\nAdded IsForeignKeyConstraintError() helper function:\n- Located in internal/storage/sqlite/util.go  \n- Detects both uppercase and lowercase variants\n- Full test coverage added to util_test.go\n- Tests pass ✓\n\n## Next Steps\n\nWhen FK constraint error is reproduced:\n1. Update importer.go to use IsForeignKeyConstraintError()\n2. Log warning with issue ID and constraint details\n3. Track skipped issues in Result struct\n4. Continue import instead of failing\n5. Report skipped issues in summary\n\nThe helper is ready to use when you encounter the actual constraint violation.","status":"open","priority":2,"issue_type":"feature","created_at":"2025-11-23T21:37:02.811665-08:00","updated_at":"2025-11-23T21:37:50.739917-08:00","source_repo":"."}
-{"id":"bd-ktng","content_hash":"0a09f3e1549a70817f23aa57444811aaf18683ff9336944ff6e8c277ac5684b4","title":"Optimize CLI test suite - eliminate redundant git init calls","description":"Current: Each of 13 CLI tests calls git init (31s total). Solution: Use single test binary built once in init(), skip git operations where possible, or use mock filesystem.","status":"open","priority":2,"issue_type":"task","created_at":"2025-11-04T11:23:13.660276-08:00","updated_at":"2025-11-04T11:23:13.660276-08:00","source_repo":"."}
+{"id":"bd-ktng","content_hash":"b303c08fd8c8f4d34bc245e3dfa7898e232a63e7c8d635da1d89f3ccd206cba4","title":"Optimize CLI test suite - eliminate redundant git init calls","description":"Current: Each of 13 CLI tests calls git init (31s total). Solution: Use single test binary built once in init(), skip git operations where possible, or use mock filesystem.","status":"in_progress","priority":2,"issue_type":"task","created_at":"2025-11-04T11:23:13.660276-08:00","updated_at":"2025-11-23T22:45:34.031792-08:00","source_repo":"."}
 {"id":"bd-l954","content_hash":"263dd2111cf0353b307f2e47489aa42ecf607e49b1316b54a6497cad9d3722b0","title":"Performance Testing Framework","description":"Add comprehensive performance testing for beads focusing on optimization guidance and validating 10K+ database scale. Uses standard Go tooling, follows existing patterns, minimal complexity.\n\nComponents:\n- Benchmark suite for critical operations at 10K-20K scale\n- Fixture generator for realistic test data (epic hierarchies, cross-links)\n- User diagnostics via bd doctor --perf\n- Always-on profiling integration\n\nGoals:\n- Identify bottlenecks for optimization work\n- Validate performance at 10K+ issue scale\n- Enable users to collect diagnostics for bug reports\n- Support both SQLite and JSONL import paths","status":"open","priority":2,"issue_type":"epic","created_at":"2025-11-13T22:22:11.203467-08:00","updated_at":"2025-11-13T22:22:11.203467-08:00","source_repo":"."}
 {"id":"bd-m0w","content_hash":"e8641e225f1d4cf13fbd97c4a83046e3597df180d3ee134125e4a35abc6941cd","title":"Add test coverage for internal/validation package","description":"","design":"Validation package has 1 test file. Critical for data integrity. Target: 80% coverage","acceptance_criteria":"- At least 4 test files\n- Package coverage \u003e= 80%\n- Tests cover all validation rules","status":"open","priority":2,"issue_type":"task","created_at":"2025-11-20T21:21:24.129559-05:00","updated_at":"2025-11-20T21:21:24.129559-05:00","source_repo":".","dependencies":[{"issue_id":"bd-m0w","depends_on_id":"bd-ge7","type":"blocks","created_at":"2025-11-20T21:21:31.350477-05:00","created_by":"daemon"}]}
 {"id":"bd-m7ge","content_hash":"bb08f2bcbbdd2e392733d92bff2e46a51000337ac019d306dd6a2983916873c4","title":"Add .beads/README.md during 'bd init' for project documentation and promotion","description":"When 'bd init' is run, automatically generate a .beads/README.md file that:\n\n1. Briefly explains what Beads is (AI-native issue tracking that lives in your repo)\n2. Links to the main repository: https://github.com/steveyegge/beads\n3. Provides a quick reference of essential commands:\n   - bd create: Create new issues\n   - bd list: View all issues\n   - bd update: Modify issue status/details\n   - bd show: View issue details\n   - bd sync: Sync with git remote\n4. Highlights key benefits for AI coding agents and developers\n5. Encourages developers to try it out\n\nThe README should be enthusiastic and compelling to get open source contributors excited about using Beads for their AI-assisted development workflows.","status":"open","priority":2,"issue_type":"feature","created_at":"2025-11-16T22:32:50.478681-08:00","updated_at":"2025-11-16T22:32:58.492868-08:00","source_repo":"."}