fix(gui): CI gate repairs — docs, coverage, HMR re-registration

Regenerate the module-graph/config-catalog/event-graph docs for the
locale rename and new packages; allowlist the three settings READMEs;
complete the RFC code block and add its English pair. Cover the
ThemeService media-query paths (stubbed matchMedia) and mark the
unreachable registry fallback. General section re-registration now
judges presence on the slot ledger instead of a local disposer, which
went stale when an HMR collapse removed the entry.

docs/event-producer-consumer.md

@@ -63,6 +63,8 @@ This matrix shows which packages dispatch each harness-owned event and which pac
 | `internal/dispatch` | - | [`compact`](../packages/compact/compact), [`fs`](../packages/fs/fs), [`goal`](../packages/goal/goal), [`goal-session`](../packages/goal/goal-session), [`hook-protocol`](../packages/hooks/hook-protocol), [`llm-retry`](../packages/llm/llm-retry), [`permission`](../packages/ui/permission), [`plan-mode`](../packages/plan/plan-mode), [`pty-local`](../packages/pty/pty-local), `runtime`, [`sandbox-policy`](../packages/sandbox/sandbox-policy), [`scope`](../packages/core/scope), [`session`](../packages/core/session), [`subagent`](../packages/subagent/subagent), [`time-context`](../packages/context/time-context), [`tool-todo`](../packages/todo/tool-todo), [`tools`](../packages/core/tools), [`user-approval`](../packages/ui/user-approval), [`workflow`](../packages/workflow/workflow) |
 | `internal/plugin` | - | `hmr`, `modules`, `webserver` |
 | `internal/status` | - | [`agent`](../packages/core/agent) |
+| `locale/change` | `locale` (`emit`) | `ui-settings-general`, `ui-settings-models` |
 | `slots/changed` | `runtime` (`emit`) | - |
+| `theme/change` | `ui-theme` (`emit`) | `ui-layout`, `ui-settings-general` |
 
 Maintenance mode: generated: Cordis event declarations and producer/listener edges are resolved from the repository TypeScript Program.