feat: add app-server model registry

[galligan]

Summary

• add an App Server-backed models op/CLI route/MCP grouped action for current Codex model defaults, model catalog rows, reasoning efforts, and service-tier aliases
• resolve explicit service_tier values for new/fork through model/list so user-facing fast maps to the App Server tier id (for example priority) before thread/turn start
• persist model catalog and per-lane model/service-tier provenance in schema v5, including observed metadata from attach/sync/discover
• update docs, plugin/skill guidance, and package version to 0.5.0

Testing

• just check
• uv run dispatch schema models | jq -e ' .op == "models" and (.input.properties.refresh.type == "boolean") and (.output.properties.models.type == "array") '\n- isolated live smoke with temp DISPATCH_HOME: dispatch up, dispatch models --json, dispatch models --no-refresh --json, dispatch down\n\nLive smoke confirmed the current local catalog shape: supportedReasoningEfforts is object-shaped, config default service tier can be fast, and models such as gpt-5.5 advertise alias fast -> priority.\n\n## Notes\n\n- models --no-refresh still reads current config defaults, but does not call model/list; catalog rows come from the registry cache.\n- Omitted model/tier options preserve Codex defaults in outbound calls; Dispatch records defaults for output truth without forcing them into App Server requests.

[galligan]

• feat: add app-server model registry #40 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[galligan]

Merge activity

• Jun 11, 4:46 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jun 11, 4:47 PM UTC: @galligan merged this pull request with Graphite.