notion schema diff: under-detects drift (no select/status option changes) + can't parse .annotations()

Problem

notion schema diff under-detects drift and can't parse schema annotations, which weakens the drift-gate:

1. Under-detection: diff only detects property add / remove / type-change. It does NOT detect select / status option-value changes (options added/removed/renamed).
2. Annotation parsing: the diff parser can't read .annotations({...}) on generated schemas. As a result, generation must use --no-schema-meta, otherwise every annotated property reports as drift.

Expected

• diff detects select/status option-value drift, not just structural property changes.
• The parser handles .annotations({...}) so generated schemas can carry meta without every property showing as drift (i.e. --no-schema-meta is not required to get a clean diff).

Package: packages/@overeng/notion-cli (src/diff.ts, src/commands/schema/mod.ts).

Start with packages/@overeng/notion-cli/src/diff.ts and packages/@overeng/notion-cli/src/commands/schema/mod.ts, tracing the existing property and type drift handling and schema parsing. The work is complete when select/status option changes are reported and schemas containing .annotations({...}) produce a clean diff without requiring --no-schema-meta.