TSApplication rejects `entrypoints` field emitted by codeanalyzer-typescript

[rahlk]

codeanalyzer-typescript emits an entrypoints field on methods/classes
that the pydantic models forbid (extra_forbidden) -> every in-memory TS
analysis blew up in _init_tsapplication. Binary/model version skew.

Resolved here by adopting the newer models that carry entrypoints.
Filing for the record: keep TSApplication in lockstep with the binary
schema, add a contract test so this fails loudly next time.