Port the BotUser resource from /api/v1's /user/bots routes to the
Huma-backed /api/v2, preserving every v1 behavior:
- Full CRUD at /user/bots and /user/bots/{bot} with v2 verbs (POST
creates, PUT updates; PATCH is synthesised by AutoPatch).
- ReadAll returns only the caller's own bots; read/update/delete of an
unowned or missing bot is refused with 403, since ownership is resolved
by loading the user (no existence disclosure, no 404 branch).
- Create requires a real user account and rejects link shares, the
bot- username prefix is enforced, and bots are created without an
email or password — all delegated to the unchanged model layer.
- ReadOne surfaces max_permission via the shared value-embed pattern and
carries an ETag for conditional requests.
doc/readOnly tags are added to the exposed user.User fields the bot
response surfaces, and to BotUser.Status, so the v2 OpenAPI schema is
documented. The model and v1 routes are untouched.
The webtest ports the v1 model-level permission matrix to the v2 HTTP
surface and adds the v2-only ETag/304 and merge-patch coverage.
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