## Summary
Adds the \`secret-encryption:rotate\` CLI command, which re-encrypts
every at-rest secret stored in an \`enc:v2:\` envelope under the current
\`ENCRYPTION_KEY\`. The command is **online** and **resumable**: a SQL
filter skips rows already on the current keyId, so interrupting it
(Ctrl-C, container restart, …) and re-running picks up where it left off
without re-rotating earlier rows.
### Sites covered (one handler each)
| Site | Table.column | Scope |
| --- | --- | --- |
| \`connected-account-tokens\` | \`connectedAccount.{accessToken,
refreshToken}\` | workspace |
| \`application-variable\` | \`applicationVariable.value\` (isSecret
only) | workspace |
| \`application-registration-variable\` |
\`applicationRegistrationVariable.encryptedValue\` | instance |
| \`signing-key-private-keys\` | \`signingKey.privateKey\` | instance |
| \`sensitive-config-storage\` | \`keyValuePair.value\` (isSensitive +
STRING configs) | instance |
| \`totp-secrets\` | \`twoFactorAuthenticationMethod.secret\` |
workspace |
Each handler:
- Filters at SQL level on \`value LIKE 'enc:v2:%' AND value NOT LIKE
'enc:v2:<primaryKeyId>:%'\` to enforce idempotency without re-decrypting
already-rotated rows.
- Uses cursor-based batching (default **200**, capped **5000**).
- Threads \`workspaceId\` into HKDF for workspace-scoped sites; runs
instance-scoped for the rest.
### CLI flags
| Flag | Description |
| --- | --- |
| \`-s, --site <site>\` | Limit to a single site. |
| \`-b, --batch-size <n>\` | Override per-batch row count. |
| \`-d, --dry-run\` | Decrypt + re-encrypt in memory, skip the
\`UPDATE\`. |
The runner logs progress via Nest \`Logger\` (per-site start,
completion, final summary) and exits non-zero when any site reports
\`errors > 0\`. \`FALLBACK_ENCRYPTION_KEY\` must be set to the previous
\`ENCRYPTION_KEY\` during rotation; the runner warns when it is unset.
Operator documentation lives in #20611 (docs PR).
