move 5 completed plans to plans/done/

- Consolidate Oikos on mac-mini (2026-07-06)
- Client lifecycle in Go (2026-07-07)
- Comprehensive audit & next steps (2026-07-07)
- DB as source of truth (2026-07-07)
- MCP tool completion (2026-07-07)

Paths fixed in index.md to reflect planes/done/ locations.
Active plans remaining: Prometheus LXC (Planned), implementation audit (Active).

plans/index.md

@@ -23,11 +23,11 @@ See [`done/`](done/) for executed plans:
 | 2026-06-29 | [Grimmory migration — Booklore → dedicated LXC](done/2026-06-29-grimmory-migration.md) |
 | 2026-06-24 | [TRMNL plugins LXC (128) + middleware deploy pipeline](done/2026-06-24-trmnl-plugins-lxc.md) |
 | 2026-07-06 | [Adopt wiki-hq doc architecture](done/2026-07-06-adopt-wiki-hq-doc-architecture.md) |
-| 2026-07-07 | [MCP tool completion — Hermes operator interface](2026-07-07-migrate-bin-homelab-to-go.md) |
-| 2026-07-07 | [DB as single source of truth for agent knowledge](2026-07-07-db-as-source-of-truth.md) |
-| 2026-07-07 | [Comprehensive audit: stale files, state gaps, and next steps](2026-07-07-comprehensive-audit-and-next-steps.md) |
-| 2026-07-07 | [Client lifecycle in Go — enrollment through deprecation](2026-07-07-client-lifecycle-in-go.md) |
-| 2026-07-06 | [Consolidate Oikos control plane onto mac-mini](2026-07-06-consolidate-oikos-control-plane-onto-mac-mini.md) |
+| 2026-07-07 | [MCP tool completion — Hermes operator interface](done/2026-07-07-migrate-bin-homelab-to-go.md) |
+| 2026-07-07 | [DB as single source of truth for agent knowledge](done/2026-07-07-db-as-source-of-truth.md) |
+| 2026-07-07 | [Comprehensive audit: stale files, state gaps, and next steps](done/2026-07-07-comprehensive-audit-and-next-steps.md) |
+| 2026-07-07 | [Client lifecycle in Go — enrollment through deprecation](done/2026-07-07-client-lifecycle-in-go.md) |
+| 2026-07-06 | [Consolidate Oikos control plane onto mac-mini](done/2026-07-06-consolidate-oikos-control-plane-onto-mac-mini.md) |
 
 ## Conventions