docs: consolidate Release Notes into Changelog and remove temp file [skip ci]

CHANGELOG.md

@@ -9,6 +9,33 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+---
+
+## [3.0.0] - 2026-01-25 - "The Governance Update"
+
+### Added
+
+- **Governance & Security**:
+  - `docs/QUALITY_BAR.md`: Defined 5-point validation standard (Metadata, Risk, Triggers).
+  - `docs/SECURITY_GUARDRAILS.md`: Enforced "Authorized Use Only" for offensive skills.
+  - `CODE_OF_CONDUCT.md`: Adhered to Contributor Covenant v2.1.
+- **Automation**:
+  - `scripts/validate_skills.py`: Automated Quality Bar enforcement (Soft Mode supported).
+  - `.github/workflows/ci.yml`: Automated PR checks.
+  - `scripts/generate_index.py`: Registry generation with Risk & Source columns.
+- **Experience**:
+  - `docs/BUNDLES.md`: 9 Starter Packs (Essentials, Security, Web, Agent, Game Dev, DevOps, Data, Testing, Creative).
+  - **Interactive Registry**: README now features Risk Levels (🔴/🟢/🟣) and Collections.
+- **Documentation**:
+  - `docs/EXAMPLES.md`: Cookbook with 3 real-world scenarios.
+  - `docs/SOURCES.md`: Legal ledger for attributions and licenses.
+  - `RELEASE_NOTES.md`: Generated release announcement (archived).
+
+### Changed
+
+- **Standardization**: All 250+ skills are now validated against the new Quality Bar schema.
+- **Project Structure**: Introduced `docs/` folder for scalable documentation.
+
 ## [2.14.0] - 2026-01-25 - "Web Intelligence & Windows"
 
 ### Added