feat(omo): retire opencode and move its skills and commands to omo

- Move the vendored skills from .config/opencode/skills to
  .config/omo/skills, with provenance and local changes in its README
- Rewrite Impeccable's script paths to ~/.omo/agent/skills/impeccable so
  its detector and live-server verbs resolve under omo
- frontend-workflow hands screenshots to a visual-engineering task
  instead of opencode run
- Move the notes commands and /impeccable to .config/omo/prompts as omo
  prompt templates; setup-mcp stays behind because it writes
  opencode.json
- Archive DEVELOPMENT-WORKFLOW.md and UI-WORKFLOW.md under
  .config/omo/archive; nothing loads them
- link-ai-configs.sh links the skills into omo and Claude Code only and
  stops linking OpenCode's config, TUI, plugins and workflow docs
- setup-mac.sh and Brewfile.apps stop installing OpenCode; README and
  .withcontextconfig.jsonc follow the new layout

~/.config/opencode/AGENTS.md stays linked: omo's rules engine reads it
before ~/.claude/CLAUDE.md and stops at the first hit, so it carries the
shared preferences and keeps OMC's instructions out of omo.

.config/omo/prompts/teleport-notes.md

@@ -0,0 +1,113 @@
+---
+description: Teleport documentation files from Obsidian vault to local project
+---
+
+# Teleport Notes
+
+Downloads documentation files from the Obsidian vault back to the local project based on `.withcontextconfig.jsonc` delegation rules.
+
+## What This Command Does
+
+This command downloads files from vault to local project:
+
+- Scans vault for files matching vault patterns in `.withcontextconfig.jsonc`
+- Copies matched files to local project preserving directory structure
+- Optionally deletes vault files after successful copy
+- Provides dry-run preview mode
+
+**Prerequisites:**
+
+- `.withcontextconfig.jsonc` must exist (run `/setup-notes` first if not)
+- Configuration defines which files have delegation decision "vault"
+
+## Your Task
+
+Execute the teleport_notes tool immediately with dry-run by default for safety:
+
+```javascript
+// Check for flags in arguments
+const args = '$ARGUMENTS';
+const shouldExecute = args.includes('--execute');
+const shouldDelete = args.includes('--delete');
+const forceDelete = args.includes('--force-delete');
+
+const result = await teleport_notes({
+  dry_run: !shouldExecute,
+  delete_from_vault: shouldDelete,
+  force_delete: forceDelete,
+});
+
+return result;
+```
+
+**Usage:**
+
+- `/teleport-notes` - Preview what will be downloaded (safe, dry-run mode)
+- `/teleport-notes --execute` - Download files from vault (keeps vault files)
+- `/teleport-notes --execute --delete` - Download and delete vault files
+- `/teleport-notes --execute --delete --force-delete` - Force delete even on errors
+
+**Important:** Use `--delete` flag only if you want to remove vault files after downloading!
+
+## Parameters
+
+### dry_run (optional, default: false)
+
+Preview mode - shows what will happen without making changes:
+
+```javascript
+dry_run: true; // Preview only
+dry_run: false; // Execute for real
+```
+
+### delete_from_vault (optional, default: false)
+
+Whether to delete vault files after successful copy to local:
+
+```javascript
+delete_from_vault: false; // Keep vault files (default)
+delete_from_vault: true; // Delete vault files after copy
+```
+
+### force_delete (optional, default: false)
+
+Force deletion of vault files even if some files had errors:
+
+```javascript
+force_delete: false; // Don't delete if errors occurred (default)
+force_delete: true; // Delete even if some files failed
+```
+
+## Important Notes
+
+- **Vault files are NOT deleted by default** - set `delete_from_vault: true` explicitly if desired
+- **Always preview first** - Use `dry_run: true` before executing
+- **The tool automatically checks** for `.withcontextconfig.jsonc` existence
+- **Directory structure is preserved** in the local project
+
+## Example Output
+
+```
+=== Teleport Results ===
+
+Files teleported from vault: 15
+  - docs/guides/getting-started.md → docs/guides/getting-started.md
+  - docs/architecture/decisions/001-use-typescript.md → docs/architecture/decisions/001-use-typescript.md
+  - CHANGELOG.md → CHANGELOG.md
+  ... (12 more files)
+
+Vault files deleted: 0 (kept in vault)
+Errors: 0
+```
+
+## Related Commands
+
+- `/setup-notes` - Create configuration file
+- `/preview-notes-delegation` - Preview which files will be teleported
+- `/sync-notes` - Bidirectional sync (moves files both ways)
+- `/ingest-notes` - One-way copy to vault
+- `/validate-notes-config` - Validate configuration
+
+---
+
+_The teleport-notes tool downloads vault documentation to local project based on delegation rules._