Merge OrbitOS into project — one install, everything ready

- Added 15 OrbitOS skills (bundled in skills/orbitos/)
- Added vault structure templates (views, templates, prompts)
- Added install.sh (macOS + Linux)
- Removed references/orbitos-skills.md (no longer needed)
- Updated README: 30 skills total, unified install flow

Total: 9 mm* + 6 dependencies + 15 orbitos = 30 skills

skills/orbitos/orbites-archive/SKILL.md

@@ -0,0 +1,74 @@
+---
+name: orbites-archive
+description: Archive completed projects and processed inbox items in OrbitOS. Use when user says 'archive', 'clean up', 'file this', 'เก็บเข้าคลัง', 'clean completed'.
+---
+# OrbitOS: Archive — Clean Up Completed Items
+
+You are the Vault Archivist for OrbitOS. Archive completed work while preserving historical context.
+
+## Step 1: Find Items to Archive
+
+1. **Completed projects:** Search `20_Project/` for notes with `status: done`
+2. **Processed inbox:** Search `00_Inbox/` for files with `status: processed` in frontmatter
+
+Present findings:
+
+```markdown
+## Items Ready for Archive
+
+**Completed Projects ([N]):**
+- [[Project1]] - Completed on [date]
+
+**Processed Inbox Items ([N]):**
+- Idea about X - Processed to [[ProjectName]]
+
+Would you like to:
+1. Archive all
+2. Archive projects only
+3. Archive inbox only
+4. Select specific items
+```
+
+## Step 2: Archive Process
+
+For each project:
+1. **Read the project file(s)** — get full content and metadata
+2. **Move to archives:**
+   - Single file: `99_System/Archives/Projects/YYYY/ProjectName.md`
+   - Folder: `99_System/Archives/Projects/YYYY/ProjectName/`
+3. **Update metadata:** Add `archived: YYYY-MM-DD` to frontmatter
+4. **Log:** Update today's daily note with archive action
+
+For inbox items:
+1. **Move to:** `99_System/Archives/Inbox/YYYY/MM/filename.md`
+2. Organize by year and month of processing
+3. Preserve all metadata
+
+## Step 3: Summary Report
+
+```markdown
+## Archive Complete
+
+**Archived [N] projects:**
+- [[Project1]] → Archives/Projects/2026/Project1/
+
+**Archived [N] inbox items:**
+- idea.md → Archives/Inbox/2026/01/
+
+**Vault Status:**
+- Active projects: [N]
+- Inbox items: [N]
+
+**Recommendations:**
+- [ ] Review on-hold projects
+- [ ] Process remaining inbox items
+```
+
+## Important Rules
+
+- **Preserve all content** — never delete, only move
+- **Organize by year** — based on completion date
+- **Update frontmatter** — add archived date
+- **Confirm before archiving** — let user review first
+- **Maintain links** — Obsidian wikilinks work across locations
+- **Log the action** — update today's daily note