Implements EVL-107. Adds `evlog/fastify` — a Fastify plugin for
automatic wide-event logging with full pipeline support (drain,
enrich, keep). Exposes `request.evlog` for typed per-request access
and `useLogger()` via AsyncLocalStorage for call-stack access.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

…est.log

- Remove `fastify-plugin` runtime dependency (evlog must have zero deps)
- Inline `Symbol.for('skip-override')` to break encapsulation without a package
- Rename `request.evlog` → `request.log` to match Express/Elysia ergonomics
- Update tests, example, docs, and AGENTS.md accordingly

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

- Add `fastify` scope to PR template and semantic PR CI workflow
- Add `example:fastify` script to root package.json
- Add Fastify to FeatureFrameworks.vue component (tab 6)
- Add #fastify code snippet to landing page
- Create docs example page at 6.examples/6.fastify.md

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Remove unused eslint-disable directive, fix no-extra-semi by splitting
leading-semicolon expressions, and remove async from route handlers
that don't use await (require-await rule).

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

storage.enterWith() permanently modifies the async context, so the
"throws outside middleware context" test must run before any request
that calls enterWith, otherwise the storage is non-null and useLogger()
won't throw.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

storage.enterWith() permanently modifies the current async context.
In test environments where app.handle() doesn't create a new async
context per request, the storage from one request leaks into the next,
causing useLogger() to not throw when called outside middleware.

Clear the storage at the end of onAfterHandle and onError so that
each request leaves a clean state. Also move the "throws outside
middleware context" test first in its describe block as an extra guard.

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

- elysia: replace storage.enterWith(undefined) cleanup with activeLoggers
  WeakSet so useLogger() reliably throws when called outside a live request,
  regardless of async context persistence in Bun test environments
- elysia: use state.logger in onError instead of storage.getStore()
- fastify: use (request as any).log in onError instead of storage.getStore()
- docs: fix Fastify landing slot (evlog({ drain }) → app.register(evlog, { drain }))
- docs: add { logger: false } to Fastify() in landing and installation docs

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>