docs(03): create phase plan

.planning/ROADMAP.md

@@ -61,7 +61,10 @@ Plans:
   3. User can press Backspace or a back key to return to the previous document, and then press a forward key to return to where they were
   4. User can Tab-cycle between links on a page to select and follow them without using a mouse
   5. User sees their current location (breadcrumb) in the status bar
-**Plans**: TBD
+**Plans:** 2 plans
+Plans:
+- [ ] 03-01-PLAN.md — Renderer link extraction, wiki-link styling, and vault link resolution
+- [ ] 03-02-PLAN.md — App navigation: history, link cycling, draw-time selection, breadcrumb status bar
 
 ### Phase 4: BBS Polish and Live Content
 **Goal**: The app feels like a real BBS — the index page has an ANSI art header, pages show last-updated timestamps, a vault directory is browsable, and content updates live without restarting
@@ -83,5 +86,5 @@ Phases execute in numeric order: 1 → 2 → 3 → 4
 |-------|----------------|--------|-----------|
 | 1. Safety Foundation | 3/3 | Complete    | 2026-02-28 |
 | 2. Vault Core and Rendering | 3/3 | Complete    | 2026-02-28 |
-| 3. Navigation and Links | 0/TBD | Not started | - |
+| 3. Navigation and Links | 0/2 | Not started | - |
 | 4. BBS Polish and Live Content | 0/TBD | Not started | - |