v0.0.5

Added

• Project-index-backed completion for shader symbols.
• Signature help for indexed shader functions.
• Curated Unity/HLSL/ShaderLab built-in completion vocabulary and built-in function signatures where catalog metadata exists.

Changed

• Removed completed process plans from tracked docs and folded durable information into public docs.
• Updated extension package version to 0.0.5.

Verification

• npm test
• npm run package:vsix