…hain

…r configs

…is_local serialization

…idation

…aph relink and node removal, harden ephemeral port path

Loop 2 review fixes:

- recipe-studio.ts: type-narrow next.is_local by also checking
  next.kind === "model_provider". TS otherwise raised TS2339 because
  next was typed as the union NodeConfig after the spread. The behavior
  is unchanged but the code now compiles cleanly.
- model-config-dialog.tsx: convert the lastProviderRef / providerInputRef
  ref-during-render pattern (pre-existing react-hooks/refs lint error)
  to a useEffect that syncs providerInputRef from config.provider. The
  combobox blur path still uses applyProviderChange and remains stable.
- recipe-graph-connection.ts: when a graph drag links a model_provider
  to a model_config, mirror the dialog applyProviderChange behavior:
  fill model: "local" if the new provider is local and the model field
  is blank, clear model when relinking from a local placeholder to an
  external provider, otherwise leave the model alone.
- reference-sync.ts: when a referenced provider node is removed, clear
  the synthetic model: "local" placeholder along with the provider
  field, so a future relink to an external provider does not pass
  validation with a stale value that fails at runtime.
- run.py: only publish app.state.server_port when the bound port is a
  real positive integer; for ephemeral binds (port==0) leave it unset
  and let request handlers fall back to request.base_url.
- jobs.py: _resolve_local_v1_endpoint also falls back when
  app.state.server_port is non-positive, and uses `is None` instead of
  the truthy fallback so a literal 0 is handled correctly.

…eachable configs, add scope-server port fallback

Loop 3 review fixes:

- jobs.py, validate.py: require `is_local is True` instead of truthy
  check. Malformed payloads such as is_local: "false" or is_local: 1
  would otherwise be treated as local and silently rewritten to the
  loopback endpoint.
- jobs.py: _resolve_local_v1_endpoint now tries request.scope["server"]
  (the actual uvicorn-assigned (host, port) tuple) as a second
  resolution step before falling back to parsing request.base_url.
  This covers direct-uvicorn startup paths and ephemeral binds that
  never publish app.state.server_port.
- jobs.py: new _used_llm_model_aliases helper collects the set of
  model_aliases that an LLM column actually references, and the
  "Chat model loaded" gate is now only triggered when a local
  provider is reachable from that set. Orphan model_config nodes on
  the canvas no longer block unrelated recipe runs.

…ON parsing for local providers, local-aware inline editor

Loop 4 review fixes:

- jobs.py: after rewriting local providers, also force
  skip_health_check: true on any model_config linked to a local
  provider. The /v1/models endpoint only advertises the real loaded
  model id, so data_designer's default model-availability health check
  would otherwise fail against the placeholder "local" id before the
  first chat completion call. The inference route already ignores the
  model id in chat completions, so skipping the check is safe.
- builders-model.ts: buildModelProvider now short-circuits for local
  providers and emits only { name, endpoint: "", provider_type, is_local }
  without running parseJsonObject on the hidden extra_headers/extra_body
  inputs. Imported or hydrated recipes with stale invalid JSON in those
  fields no longer block client-side validate/run.
- inline-model.tsx: the model_config branch now accepts an optional
  localProviderNames prop and mirrors the dialog applyProviderChange
  behavior. Changing provider to/from a local one auto-fills or clears
  the "local" placeholder consistently with the other edit paths.
- recipe-graph-node.tsx: derive localProviderNames from the store via
  useMemo (stable identity) and pass it through renderNodeBody to
  <InlineModel>. Hooks order is preserved by declaring them above the
  early return for markdown_note nodes.
- run.py: minor comment tweak - loop 3 already added the scope-server
  fallback path, note that in the comment.