feat(chat): MCP tool apps — custom inline renderers for 12 tools

12 of 33 MCP tools now render as rich inline cards instead of raw JSON:
EntityCard, HealthSummary, LXCList, EntityTable, KnowledgeResults,
BlastRadius, ChangeLog, FleetSnapshot, MetricChart.

Architecture:
- Server: annotateJSONResult() wraps queryRows with __renderer hints
- Registry: match/dispatch system maps tool names to Svelte components
- Chat: inline dispatch with 5-card limit, overflow to collapsed group
- ToolCallGroup: unmatched prop, hides when all matched, ARIA labels

Tests: 3 new Go tests for annotateJSONResult (wrap, no-op, multi-row).

plans/index.md

@@ -14,7 +14,6 @@ went sideways, open an investigation.
 | 2026-07-08 | [Liveness, drift, and UX cohesion](2026-07-08-liveness-drift-and-ux-cohesion.md) | In Progress — Phase 5 deferred |
 | 2026-07-10 | [General gated execution: unlimited actions, gated by risk](2026-07-10-general-gated-execution.md) | In Progress — enum retirement + auto-act revival still open |
 | 2026-07-11 | [Nomos agent code review: gaps and improvement plan](2026-07-11-nomos-agent-code-review.md) | In Progress — only C1 (unauthenticated nomos gateway) still open, deferred |
-| 2026-07-11 | [Nomos agent code review: gaps and improvement plan](2026-07-11-nomos-agent-code-review.md) | In Progress — only C1 (unauthenticated nomos gateway) still open, deferred |
 
 ## Done
 
@@ -45,6 +44,7 @@ See [`done/`](done/) for executed plans:
 | 2026-07-11 | [UI review: information architecture, usability, and best practices](done/2026-07-11-ui-review-ia-usability.md) |
 | 2026-07-11 | [Task completion safety net: every live task is stuck "Running"](done/2026-07-11-task-completion-safety-net.md) |
 | 2026-07-12 | [Wails desktop application](done/2026-07-12-wails-desktop-app.md) |
+| 2026-07-13 | [MCP tool apps: custom in-chat renderers](done/2026-07-13-mcp-tool-apps-custom-chat-renderers.md) |
 
 ## Conventions