feat: expose extended promotional components

[ryonakae]

Summary

• Add an is_extended_promotional component column derived from source metadata during DB optimization
• Expose the flag in /components/list, /api/search, D1 search/catalog responses, and component filters
• Carry the field through D1 component catalog/search-index materialization and add focused detection coverage
• Update the 7z setup URLs from 24.08 to 25.01 so CI can fetch the archive during setup

/claim #92

Verification

• bunx tsc --noEmit --pretty false
• bun test tests/lib/is-extended-promotional.test.ts
• bun run format:check
• git diff --check

Note: I also tried bun test tests/routes/components/list.test.ts tests/routes/api/search.test.ts, but the local route fixture failed before assertions with driver has already been destroyed from Kysely. The focused utility coverage and type/format checks pass locally.