Three coupled changes to the scopes facade.
1. `PeerCreate` no longer gates internal lookups. It exists to validate a new,
user-supplied peer id at the API boundary, but crud used it as a DTO for
names that already exist, so any name outside RESOURCE_NAME_PATTERN raised a
raw pydantic ValidationError — which is not a HonchoException, so it fell
through to the catch-all handler as an HTTP 500. Adds `PeerSpec` (same
fields, no charset pattern) as `PeerCreate`'s base, widens
`get_or_create_peers` to accept it, and changes `get_peer` to take a plain
str. All 13 construction sites converted; the create route keeps full
validation.
This unbreaks the Dreamer: DreamScheduler passes `collection.observer`
straight into the specialist preflight, and scope peers have
`observe_others=true`, so every `(scope.x, peer)` dream died there — the
feature scopes exist to enable. It also fixes a pre-existing bug unrelated
to scopes: a peer named `alice.smith` (legal before d429de0e5338, which
validated names by length alone) 500s on message create, session peer add,
and peer update.
2. The `kind` flag moves from `configuration` to `internal_metadata`.
`configuration` is user-writable — `PeerCreate`/`PeerUpdate` accept a
free-form dict and `update_peer` replaces it wholesale — so a legitimate
`{"observe_me": true}` update silently dropped the flag, and a forged
`{"kind": "scope"}` injected an ordinary peer into `POST /scopes/list`.
`internal_metadata` appears in no API schema. `observe_me: false` stays in
`configuration`, where it belongs.
3. Scope identity requires prefix AND flag, via `is_scope_peer()` and
`scope_peer_clause()`. Neither half is forgeable: the prefix sits outside
RESOURCE_NAME_PATTERN, `internal_metadata` is unreachable. Usage-site guards
become flag-based so a legacy peer merely occupying the namespace keeps
working rather than 422-ing on its own traffic; peer create and update stay
name-based, since those must stop new names entering the namespace.
`update_peer` now returns 422 instead of 500.
Also swaps the reserved prefix from `scope__` to `scope.`: `_` is inside
RESOURCE_NAME_PATTERN, so any tenant could already own a `scope__x` peer.
No DB migration — `internal_metadata` already exists on `peers`, and no scope
peers exist in any deployment yet.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>