chore(errors): drop the dead STORAGE_* file-processing lifecycle codes

[pyramation]

Summary

Follow-up to #1849, which re-audited constructive-db and noticed seven STORAGE_* file-processing lifecycle codes (STORAGE_ACCESS_CLAIM_MISMATCH, STORAGE_FILE_NOT_FOUND, STORAGE_SOURCE_HASH_REQUIRED, STORAGE_SOURCE_HASH_MISMATCH, STORAGE_INVALID_COMPLETION_RESULT, STORAGE_PROCESSING_CONFLICT, STORAGE_INVALID_UPLOAD_DOCUMENT) that constructive-db no longer raises anywhere, but kept them in the inventory only because storage-lifecycle.test.ts pinned them.

This PR makes the registry match reality:

• scripts/db-error-inventory.json / src/generated/registry.generated.ts — fresh audit-db-errors.py + generate-registry.py run against constructive-db main (post constructive-db#3834). The diff to the inventory is exactly those seven removals; no other code changed.
• src/registry.ts — removed the curated overrides for those seven, plus the two "runtime-only" companions STORAGE_BUCKET_DATABASE_MISMATCH / STORAGE_FILE_TARGET_UNAVAILABLE and the StorageFileContext type. Neither runtime code has a caller in constructive, constructive-db, constructive-hub, dashboard or any other checked-out repo; they existed only to accompany the lifecycle set.
• __tests__/storage-lifecycle.test.ts — deleted; it only exercised the nine removed codes.

STORAGE_BUCKET_NOT_RECONCILED and every other STORAGE_* code that constructive-db actually raises are untouched.

Verified: pnpm lint, tsc --noEmit, and pnpm test (41 tests) in packages/errors.

Link to Devin session: https://app.devin.ai/sessions/030828a4ea704932a6eb20f098dcd129
Open in Devin Desktop: https://app.devin.ai/desktop/session/030828a4ea704932a6eb20f098dcd129?variant=devin
Requested by: @pyramation

[devin-ai-integration]

I'll fix CI failures and address comments from users with write access. I'll skip comments containing "(aside)".

• Disable automatic comment, CI, and merge conflict monitoring

[tenki-reviewer]

Review complete. No issues found — approved ✅.

---

The change prunes 9 no-longer-raised STORAGE_* error codes (e.g. STORAGE_FILE_NOT_FOUND, STORAGE_PROCESSING_CONFLICT, STORAGE_BUCKET_DATABASE_MISMATCH) from the curated registry in packages/errors/src/registry.ts, removes their rows from packages/errors/scripts/db-error-inventory.json, and deletes the corresponding storage-lifecycle.test.ts coverage.

Files	Change
packages/errors/src/registry.ts	Removes the dead STORAGE_* curated error definitions and any HTTP/class mappings tied to them.
packages/errors/scripts/db-error-inventory.json	Drops the inventory entries for the removed codes so the audit artifact stays in sync with the registry.
packages/errors/__tests__/storage-lifecycle.test.ts	Deletes the test file that asserted the now-removed storage lifecycle codes.

All STORAGE_* removal candidates were verified against the repository: the codes have no remaining in-repo raisers or consumers, and the bundled SQL/inventory artifact confirms they were already dead, so no breaking downstream reference exists. No verified findings were produced.

_{Reviewed commit: 78caa07}