chore(tooling): drop this card's six entries from KNOWN_TEARDOWN_UNREACHED

`scripts/check-plugin-teardown-shape.mjs` (#10619) landed on main after this
branch was cut. Its baseline is shrink-only and a stale entry is itself a
failure, so the six plugins repaired here would have reddened the gate on main
the moment this merged — the merge queue would more likely have evicted this PR
first, rebuilding the queue for everyone behind it. That is the #9371
blast-radius shape, on a PR whose subject is #9371's defect class.

Which six was taken from the gate's own failure output, not from line numbers:
run before the edit, it named exactly these six as `no longer unreached`, and
each was independently confirmed to declare a real `destroy()` in this tree.

The other five entries are untouched. `MetadataPlugin`, `AppPlugin` and
`ExternalValidationPlugin` spell the alias as an arrow property and
`EmailServicePlugin` / `WebhookOutboxPlugin` spell it `dispose`; none has a
`destroy()` yet, and they are #10772's card. Deleting them would be a false
declaration that they are fixed.

Held count after this change is 5, measured, not predicted.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PnJHU45vPJj5UQrxe946Bx

Author: os-warren

scripts/check-plugin-teardown-shape.mjs

@@ -233,17 +233,11 @@ const POSITIVE_CONTROL = {
  * `EmailServicePlugin` / `WebhookOutboxPlugin` spell it `dispose`.
  */
 const KNOWN_TEARDOWN_UNREACHED = [
-  { file: 'packages/connectors/connector-openapi/src/connector-openapi-plugin.ts', cls: 'ConnectorOpenApiPlugin', alias: 'stop', repair: '#10371' },
-  { file: 'packages/connectors/connector-rest/src/connector-rest-plugin.ts', cls: 'ConnectorRestPlugin', alias: 'stop', repair: '#10371' },
-  { file: 'packages/connectors/connector-slack/src/connector-slack-plugin.ts', cls: 'ConnectorSlackPlugin', alias: 'stop', repair: '#10371' },
   { file: 'packages/metadata/src/plugin.ts', cls: 'MetadataPlugin', alias: 'stop', repair: '#10371' },
-  { file: 'packages/plugins/plugin-approvals/src/approvals-plugin.ts', cls: 'ApprovalsServicePlugin', alias: 'stop', repair: '#10371' },
   { file: 'packages/plugins/plugin-email/src/email-plugin.ts', cls: 'EmailServicePlugin', alias: 'dispose', repair: '#10371' },
-  { file: 'packages/plugins/plugin-reports/src/reports-plugin.ts', cls: 'ReportsServicePlugin', alias: 'stop', repair: '#10371' },
   { file: 'packages/plugins/plugin-webhooks/src/webhook-outbox-plugin.ts', cls: 'WebhookOutboxPlugin', alias: 'dispose', repair: '#10371' },
   { file: 'packages/runtime/src/app-plugin.ts', cls: 'AppPlugin', alias: 'stop', repair: '#10371' },
   { file: 'packages/runtime/src/external-validation-plugin.ts', cls: 'ExternalValidationPlugin', alias: 'stop', repair: '#10371' },
-  { file: 'packages/services/service-knowledge/src/knowledge-service-plugin.ts', cls: 'KnowledgeServicePlugin', alias: 'stop', repair: '#10371' },
 ];
 
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