[BugFix] Fix TY Check Failures Raised by TY 0.0.89

[dlee-bq]

This PR fixes lint failures from ty 0.0.89. The CI installs the latest ty (devtools pins ty>=0.0.40), which moved from 0.0.84 to 0.0.89. The new release enables invalid-mutable-override by default, checks attribute override types, reports deprecated overloads used as decorators, and exits 1 on warning-level diagnostics.

• example.py: mark the base Example.scope field frozen so theLiteral[api]/Literal[python] subclass overrides are covariant
  read-only narrowings. Subclass fields stay writable at runtime.
• method_definition.py, options_chains.py: pydantic 2.14 types FieldInfo.annotation as TypeForm[Any] | None, which ty rejects in Union[]/Annotated[] and where is expected; bind it as Any. Use FieldInfo.get_default(call_default_factory=True) instead of calling the default_factory union directly.
• economy_views.py: read data/obbject_item without None defaults in the IMF shipping views. charting always sets obbject_item, and data is only popped when present and not None.- finra, jodi, eia: annotate @asynccontextmanager/@contextmanager functions with AsyncGenerator/Generator instead of the deprecated AsyncIterator/Iterator return types.
• charting: cast the darts forecast dataset to TimeSeries before indexing so .all_values resolves instead of hitting ndarray.
• fred, imf, nasdaq, sec, tmx: turn off invalid-attribute-override and invalid-mutable-override for models/** only, following the cboe precedent. Provider models extend the standard models by narrowing query params to Literals or widening fields to Optional, which these rules flag by design.