Adds the `no-undeclared-rate-limit` ESLint rule (warn severity) that
enforces rate-limit drift at lint time:
- Warns when rateLimit.consume("X", _) is called inside a use-case but
"X" is absent from manifest.useCases[name].rateLimit
- Warns when a declared rateLimit budget has no matching consume call
in the use-case body (unusedDeclaration)
- Is a no-op outside use-case files
Extends _manifest-ast.js to extract the rateLimit[] field from both
parseManifestUseCases and parseManifestFully. Updates _manifest-ast
tests to include the new field in expected shapes. Registers the rule
at warn severity in plugin.js and base.js. Adds RuleTester fixtures
for all four cases (declared+matching, undeclared, unused, non-use-case).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Danijel Martinek
18cef2f889