docs: remove roadmap.md and all references

Phase 7 will be tackled later and doesn't need a roadmap entry.
Removes the file, nav entry, and all cross-references in AGENTS.md,
ecosystem.md, mkdocs.yml, and the docs hook.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: baijum

.claude/settings.json

@@ -6,7 +6,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "filepath=\"$TOOL_INPUT_file_path\"; case \"$filepath\" in */docs/*) echo '[Hook] Editing a docs/ file — check cross-references between spec.md, ecosystem.md, governance.md, roadmap.md, server-contract.md, and self-hosting.md' ;; esac; exit 0"
+            "command": "filepath=\"$TOOL_INPUT_file_path\"; case \"$filepath\" in */docs/*) echo '[Hook] Editing a docs/ file — check cross-references between spec.md, ecosystem.md, governance.md, server-contract.md, and self-hosting.md' ;; esac; exit 0"
           }
         ]
       }

AGENTS.md

@@ -16,7 +16,6 @@ docs/                  # All documentation (Markdown)
   preview-environments.md  # PR previews, DNS, cleanup
   ecosystem.md         # Org structure, app template, multi-app hosting
   governance.md        # Repository governance policies
-  roadmap.md           # Phased development plan
   tutorial.md          # Step-by-step deployment walkthrough
   server-contract.md   # Platform-to-workflow interface contract
 infrastructure/        # Server bootstrap and ops scripts
@@ -84,7 +83,6 @@ Site serves at `http://127.0.0.1:8000` with auto-reload.
 - `deployment.md` explains the CI/CD pipeline that connects GitHub repos to the server
 - `self-hosting.md` describes how forks configure and deploy independently
 - `ecosystem.md` ties everything together — the org structure, template repo, and multi-app model
-- `roadmap.md` tracks the phased plan from foundation through ecosystem growth
 
 ## Common Tasks
 

docs/ecosystem.md

@@ -14,7 +14,7 @@ towlion/
   starter-app          # Created from app-template
 ```
 
-Planned application repos (e.g., `uku-companion`, `fretboard-trainer`, `chord-transposer`, `practice-timer`) are tracked in the [roadmap](roadmap.md) under Phase 7.
+Planned application repos include `uku-companion`, `fretboard-trainer`, `chord-transposer`, and `practice-timer`.
 
 ## Repository Types
 
@@ -31,7 +31,6 @@ The meta repository for the ecosystem. Contains:
 - Architecture documentation
 - Platform specification
 - Deployment guides
-- Roadmap
 
 ### Application Template ([`towlion/app-template`](https://github.com/towlion/app-template))
 

docs/roadmap.md

@@ -47,7 +47,6 @@ nav:
   - Project:
       - Ecosystem: ecosystem.md
       - Governance: governance.md
-      - Roadmap: roadmap.md
 
 markdown_extensions:
   - tables