feat(forms): expose management operations as MCP tools

[jcheese1]

What does this PR do?

Exposes all 10 authenticated forms-management operations as plugin-declared MCP tools:

• create, list, update, duplicate, and delete forms
• list, get, update, delete, and export submissions

Each backing route now explicitly requires plugins:manage, so MCP invocation follows the same admin authorization boundary as direct API access. The forms plugin now requires EmDash 0.30.0 or newer, where plugin-declared MCP tools became available.

Type of change

• Bug fix
• Feature (requires maintainer-approved Discussion)
• Refactor (no behavior change)
• Translation
• Documentation
• Performance improvement
• Tests
• Chore (dependencies, CI, tooling)

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes (or targeted tests for my change)
• pnpm format has been run
• I have added/updated tests for my changes (if applicable)
• User-visible strings in the admin UI are wrapped for translation (if applicable). Do not include messages.po changes except in translation PRs — a workflow extracts catalogs on merge to main.
• I have added a changeset (if this PR changes a published package)
• New features link to an approved Discussion: RFC: Let plugins explicitly declare MCP tools #1587

AI-generated code disclosure

• This PR includes AI-generated code — model/tool: OpenAI Codex (GPT-5)

Screenshots / test output

No visual changes.

• pnpm lint:quick
• pnpm lint
• pnpm typecheck
• pnpm --filter @emdash-cms/plugin-forms test — 3 files and 19 tests passed
• pnpm format

[changeset-bot]

🦋 Changeset detected

Latest commit: db72397

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

Name	Type
@emdash-cms/plugin-forms	Minor
@emdash-cms/perf-demo-site	Patch
@emdash-cms/cache-demo-site	Patch
@emdash-cms/do-demo-site	Patch
@emdash-cms/do-solo-demo-site	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[pkg-pr-new]

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commit: db72397