v0.0.4

Changelog

• 1705255 chore: finish fallback integration checks and ship the model fallback spec
• 3aac7fd docs: align fallback usage across README, API, CLI, MCP, and agent skill
• 1f5b932 feat: expose fallback request overrides through HTTP, MCP, and CLI
• 39ba266 feat: add auto-route fallbacks and ensemble replacement and synthesis retry
• d371000 feat: add shared retry and fallback executor for classic completions
• 8fb1a7a feat: add fallback policy configuration with env and routing file overrides
• c6a2c27 feat: classify provider failures with typed categories, drop upstream bodies from errors
• 7bc9f1e ci: gate pushes and pull requests on vet, format, and tests
• 618b090 docs: approve model fallback spec with error confidentiality and public contract
• 775827b docs: specify model fallback policy