Three root causes for "create does nothing":
1. Wrong API base path: PolicyApiService used /api/policy (routed to
platform service via /api/ catch-all) instead of /policy/api (routed
to policy-gateway via nginx regex). Fixed API_BASE.
2. OnPush + plain fields: loading/packs/refreshing were plain booleans
and arrays. OnPush change detection ignored their mutations. Converted
all three to signals so template reactivity works automatically.
3. sortPacks crash: API returns packs with undefined modifiedAt/id
fields. localeCompare on undefined threw TypeError, preventing the
empty state from rendering. Added nullish coalescing fallbacks.
Also removed hardcoded fallback "Core Policy Pack" from the store —
it masked API failures and prevented the create form from appearing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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