feat(scripts): add emit-data-map compliance script + tests

Adds scripts/compliance/emit-data-map.mjs which walks Payload collection
configs (packages/*/integrations/cms/collections/*.ts), applies
PAYLOAD_AUTH_PII_DEFAULTS + custom.authPii overrides, and emits a
deterministic YAML PII inventory at compliance/data-map.yml.

Supports --print (stdout) and --check (diff vs committed, exit 1 on
mismatch) modes. Ships with 26 unit tests covering happy path, auth
defaults, authPii overrides, --check match/mismatch, and empty
collections. Wired as `compliance:data-map` root package script.

Adds @typescript-eslint/parser to root devDependencies (already in
workspace via core-eslint, now made explicit for scripts/ usage).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

coverage/summary.json

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