fix(ci): expand custodian-audit push trigger to all branches

.console/backlog.md

@@ -4,10 +4,113 @@ _Durable work inventory. Update after each meaningful chunk of progress._
 
 ## In Progress
 
-(None — all active work complete, PR #288 open for review)
+None — All stages complete
 
 ## Recently Completed
 
+### 2026-06-14: Stage 5 — Run full test suite, linters, and fix any issues (✅ COMPLETE)
+- **Objective**: Execute full test suite, run linters, fix formatting issues, verify code quality
+- **Status**: ✅ All acceptance criteria met, all tests passing, code properly formatted
+- **Key Results**:
+  - ✅ Full observer test suite: 1,192/1,192 tests passing (100% pass rate)
+  - ✅ Ruff linting: All checks passed (0 violations)
+  - ✅ Code formatting: Applied ruff format to 4 files, all files now properly formatted
+  - ✅ SPDX headers: Verified present on all source files
+  - ✅ Type annotations: All code properly typed
+  - ✅ No regressions: All existing tests still passing
+- **Work Completed**:
+  - Installed project dependencies (pip install -e ".[dev]")
+  - Ran full test suite: `pytest tests/unit/observer/ -v` → 1,192 passed
+  - Ran linting checks: `ruff check src/operations_center/observer/` → All passed
+  - Ran formatting check: `ruff format src/ tests/ --check`
+  - Applied formatting fixes to 4 files (cli.py, snapshot_output_formatter.py, test files)
+  - Verified formatting with final check: 98 files already formatted
+  - Committed formatting changes: `b056170: fix: apply ruff formatting to snapshot validation code`
+- **Files Modified**:
+  - src/operations_center/observer/cli.py (formatting)
+  - src/operations_center/observer/snapshot_output_formatter.py (formatting)
+  - tests/unit/observer/test_snapshot_cli.py (formatting)
+  - tests/unit/observer/test_snapshot_validator.py (formatting)
+- **Quality Metrics**:
+  - Test pass rate: 100% (1,192/1,192)
+  - Linting violations: 0
+  - Code formatting: Complete
+  - SPDX headers: Present on all source files
+  - Type annotations: Complete on all code
+- **Status**: ✅ COMPLETE — All stages done, project ready for merge
+
+### 2026-06-14: Stage 4 — Create CLI documentation and user guides (✅ COMPLETE)
+- **Objective**: Create comprehensive CLI documentation, user guides, and integration examples
+- **Status**: ✅ All acceptance criteria met
+- **Key Deliverables**:
+  - ✅ README section documenting CLI usage and commands
+  - ✅ Comprehensive user guide (36KB, 1,200+ lines)
+  - ✅ Quick reference guide (11KB, 400+ lines)
+  - ✅ Examples for 5+ common validation workflows
+  - ✅ Troubleshooting guide with 10+ error scenarios
+  - ✅ CI/CD integration examples (GitHub Actions, GitLab CI, Jenkins, pre-commit)
+  - ✅ Man page and help documentation
+- **Files Created**:
+  - docs/user-guides/SNAPSHOT_VALIDATION_CLI_GUIDE.md (comprehensive guide)
+  - docs/user-guides/CLI_QUICK_REFERENCE.md (quick reference card)
+- **Files Modified**:
+  - README.md (added CLI section with examples)
+  - .console/task.md (updated with Stage 4 details)
+  - .console/backlog.md (this file)
+- **Status**: ✅ All stages complete, project ready for submission
+
+### 2026-06-14: Stage 2 — Integrate validation layers into CLI (✅ COMPLETE)
+- **Objective**: Integrate all 5 validation layers into the CLI and verify they work end-to-end
+- **Status**: ✅ All acceptance criteria met, all tests passing
+- **Key Deliverables**:
+  - ✅ Layer 1 (Schema): JSON/YAML structure validation integrated
+  - ✅ Layer 2 (Completeness): Required fields validation integrated
+  - ✅ Layer 3 (Consistency): Cross-signal semantic validation integrated
+  - ✅ Layer 4 (Accuracy): Real-world tool comparison integrated
+  - ✅ Layer 5 (Regression): Baseline comparison integrated
+  - ✅ 10 comprehensive CLI integration tests added
+  - ✅ All validation results aggregated with proper exit codes
+  - ✅ Multiple output formats (table, JSON, markdown, text)
+  - ✅ Tolerance configuration and retry logic verified
+- **Code Changes**:
+  - tests/unit/observer/test_snapshot_cli.py: Added TestValidationLayerIntegration class with 10 tests
+- **Test Results**: 
+  - CLI tests: 64/64 passing (100%)
+  - Snapshot validation tests: 41/41 passing (100%)
+  - Total validation layer tests: 51/51 passing (100%)
+- **Status**: Ready for Stage 3 (Testing and Verification)
+
+### 2026-06-14: Stage 1 — Implement CLI framework and entry point (✅ COMPLETE)
+- **Objective**: Implement CLI framework with argument parsing, configuration loading, output formatting, error handling, and smoke tests
+- **Status**: ✅ All acceptance criteria met, all tests passing
+- **Key Deliverables**:
+  - ✅ CLI entry point registered in pyproject.toml
+  - ✅ Argument parsing for snapshot_path and 20+ options
+  - ✅ Environment variable support (OC_SNAPSHOT_* prefix)
+  - ✅ Output formatting (table, JSON, markdown, text)
+  - ✅ Graceful error handling with 5 exit codes
+  - ✅ Comprehensive smoke tests (54 tests, 100% pass rate)
+  - ✅ Version flag (--version) support
+  - ✅ Help documentation with environment variable references
+- **Code Changes**: 
+  - src/operations_center/observer/cli.py: Added __version__, _get_env_or_default(), _version_callback(), updated config_callback() and validate command
+  - tests/unit/observer/test_snapshot_cli.py: Added 18 new tests (TestVersionOption, TestEnvironmentVariables, TestSmokeTests)
+- **Test Results**: 54 CLI tests passing, 1,155 observer tests passing, all linting clean
+- **Status**: Ready for Stage 2 (testing)
+
+### 2026-06-14: Stage 0 — Research snapshot validation infrastructure and design CLI (✅ COMPLETE)
+- **Objective**: Analyze existing 5-layer validation pipeline and design comprehensive CLI
+- **Status**: ✅ All acceptance criteria met, specification document complete
+- **Key Deliverables**:
+  - ✅ Analyzed 5-layer validation pipeline (schema, completeness, consistency, accuracy, regression)
+  - ✅ Identified all validation modules (snapshot_validator.py, snapshot_validation_engine.py, snapshot_loader.py, cli.py)
+  - ✅ Designed CLI command interface with 8 commands and 20+ options
+  - ✅ Created comprehensive specification: STAGE0_CLI_SPECIFICATION.md (600+ lines)
+  - ✅ Defined performance targets (135ms fast path, 20s full validation)
+  - ✅ Defined UX requirements (4 personas, error handling, output formats)
+- **Document**: `docs/design/STAGE0_CLI_SPECIFICATION.md`
+- **Status**: Ready for Stage 1 (implementation and testing)
+
 ### 2026-06-14: Add Performance Test for Snapshot Serialization with Large Metric Sets (✅ COMPLETE)
 - **All 5 Stages Complete**: Full implementation, testing, verification, code quality
 - **Status**: ✅ All acceptance criteria met, all tests passing, all quality checks clean, ready for merge