Roadmap: 0.4.x stabilization

[bbopen]

This umbrella issue tracks the focused stabilization work for the 0.4.x line after the v0.4.0 hot-reload and config-contract release.

Tracking

• Remove the TS analyzer and tree-sitter from the required install path #238 Remove the TS analyzer and tree-sitter from the required install path
• Stabilize tywrap/dev examples and hot-reload coverage #228 Stabilize tywrap/dev examples and hot-reload coverage
• Define and enforce tywrap ↔ tywrap-ir compatibility contract #229 Define and enforce tywrap ↔ tywrap-ir compatibility contract
• Clean up deprecated runtime surface after v0.4.0 #230 Clean up deprecated runtime surface after v0.4.0