Add UI and backend support for creating, listing, and revoking
API tokens scoped to workspaces. Includes owner-level workspace
token visibility, OpenAPI documentation, Mongo/Postgres persistence,
and i18n translations.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Don Kendall <kendall@donkendall.com>

Embed apiTokenId in JWT extra field and add a per-token revocation
cache (60s TTL) in the transactor REST handler. Revoked tokens are
now rejected within ~60 seconds instead of remaining valid until
JWT expiry.

Adds checkApiTokenRevoked account service method for the transactor
to query individual token revocation status.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Don Kendall <kendall@donkendall.com>

Add coarse-grained scope enforcement for API tokens. Tokens can now
be created with scopes ['read:*'], ['read:*','write:*'], or
['read:*','write:*','delete:*']. Existing tokens without scopes
retain full access (backward compatible).

- DB: v26 migration adds scopes TEXT[] column to api_tokens
- Types: add scopes field to ApiToken and ApiTokenInfo
- Operations: createApiToken accepts/validates/persists scopes,
  embeds in JWT via extra.scopes
- Enforcement: withSession checks scopes against method; tx handler
  additionally requires delete:* for TxRemoveDoc
- Client: createApiToken signature accepts optional scopes param
- UI: scope preset dropdown in create popup (default: Read Only),
  permissions column in token list with i18n labels
- Also fixes 3 pre-existing TS2322/TS2345 errors in operations.ts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Don Kendall <kendall@donkendall.com>

- scopes.test.ts: 8 tests for hasScope() and getRequiredScope() logic
- apiTokenScopes.test.ts: 7 tests for createApiToken scope validation
  (valid scopes, multiple scopes, no scopes backward compat, invalid
  format rejection, empty array rejection, domain-scope rejection)
  and listApiTokens scopes inclusion
- Export hasScope/getRequiredScope from rpc.ts for testability

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Don Kendall <kendall@donkendall.com>