v0.2.1: entry-resource outline + identifier/notice fixes

entry-resource outline + identifier/notice fixes

A resource-overflow safeguard plus two protein-tool correctness fixes.

Changed:

• uniprot://entry/{accession} outlines a record over the budget — bounded identity summary + section outline (names + byte sizes) that routes to uniprot_get_entry (sections:[...]) instead of injecting the full payload (#6)

Fixed:

• uniprot_get_proteome and uniprot_get_taxonomy reject conflicting identifiers with a typed conflicting_identifier error (#5)
• uniprot_get_proteome declares the truncation notice field so paging guidance reaches content[] for text-only clients (#4)

113 tests pass; bun run devcheck clean.