Preparation for a "hundreds of runtimes" plugin ecosystem. Keeping the
runtime-specific UX knobs in-line inside ProvisioningTimeout scales badly
— every new runtime would require editing a component, not just adding a
table entry. Other components (create-workspace dialog, workspace card
tooltips, etc.) will want the same runtime metadata.
Changes:
- New file `canvas/src/lib/runtimeProfiles.ts` owns:
* `RuntimeProfile` type — structural shape, every field optional so
new runtimes can partially-fill without breaking consumers.
* `DEFAULT_RUNTIME_PROFILE` — 2-min default floor (docker-fast).
* `RUNTIME_PROFILES` — named overrides (currently: hermes 12 min).
* `WorkspaceRuntimeOverrides` — interface for server-provided
per-workspace overrides, so operators can tune via template
manifest / workspace metadata without a canvas release.
* `getRuntimeProfile()` — resolver with
overrides → profile → default priority.
* `provisionTimeoutForRuntime()` — convenience wrapper.
- `ProvisioningTimeout.tsx` now delegates to the profile module.
`DEFAULT_PROVISION_TIMEOUT_MS` re-exported for legacy test importers.
- Tests: 16/16 (up from 9 before the first fix). Adds pinning for:
* overrides > profile > default priority chain
* "every entry in RUNTIME_PROFILES resolves to a number" contract
* backward-compat export
Adding a new slow runtime is now one table entry in
`canvas/src/lib/runtimeProfiles.ts` with a mandatory `WHY` comment.
Moving to server-driven profiles later is a ~10-line change (the
resolver already threads WorkspaceRuntimeOverrides through).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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