feat(executor): apply payload rules using requested model

feat(runtime): add model alias support and enhance payload rule matching

feat(config): add support for raw JSON payload rules

refactor: improve thinking logic

feat(executor): enhance payload translation with original request context

fix(thinking): fallback to upstream model for thinking support when alias not in registry

fix(thinking): use model alias for thinking config resolution in mapped models

fix(thinking): align budget effort mapping across translators

feat(iflow): add thinking support for iFlow models

refactor(thinking): export thinking helpers

fix(thinking): drop unsupported none effort

fix(executor): add `allowCompat` support for reasoning effort normalization

Merge branch 'dev' into think

fix(executor): improve model compatibility handling for OpenAI-compatibility

fix(thinking): map budgets to effort levels

refactor(thinking): use parentheses for metadata suffix

refactor(thinking): use bracket tags for thinking meta

docs(runtime): document reasoning effort precedence

fix(runtime): unify reasoning effort metadata overrides

fix(runtime): validate reasoning effort levels

feat(runtime): add thinking config normalization

feat(util): implement dynamic thinking suffix normalization and refactor budget resolution logic

refactor(executor): dedupe thinking metadata helpers across Gemini executors

**feat(runtime): add payload configuration support for executors**