docs(24): create phase plan

.planning/ROADMAP.md

@@ -64,7 +64,7 @@
 
 </details>
 
-### 🚧 v2.1 Public Discovery (In Progress)
+### v2.1 Public Discovery (In Progress)
 
 **Milestone Goal:** Transform GearBox from a login-first tool into a public-first discovery platform with always-on catalog search and a browsable feed of community content.
 
@@ -84,7 +84,12 @@
   3. An unauthenticated visitor can view a public setup and see its items and totals
   4. An unauthenticated visitor can view a user's public profile page
   5. Attempting to create, edit, or delete any item/setup/thread while unauthenticated redirects to login
-**Plans**: TBD
+**Plans**: 2 plans
+
+Plans:
+- [ ] 24-01-PLAN.md — Rate limit factory and tiered public endpoint protection
+- [ ] 24-02-PLAN.md — Client-side public access (render-first root, auth prompt, setup/catalog guards)
+
 **UI hint**: yes
 
 ### Phase 25: Catalog Enrichment & Agent Tools
@@ -139,7 +144,7 @@
 | 21. Item & Catalog Detail Pages | v2.0 | 3/3 | Complete | 2026-04-06 |
 | 22. Add-from-Catalog & Thread Integration | v2.0 | 2/2 | Complete | 2026-04-06 |
 | 23. Manual Entry Fallback | v2.0 | 1/1 | Complete | 2026-04-06 |
-| 24. Public Access & Infrastructure | v2.1 | 0/TBD | Not started | - |
+| 24. Public Access & Infrastructure | v2.1 | 0/2 | In progress | - |
 | 25. Catalog Enrichment & Agent Tools | v2.1 | 0/TBD | Not started | - |
 | 26. Discovery Landing Page | v2.1 | 0/TBD | Not started | - |