Add missing Task #48 and #92 to tasks folder

Created task files for mobile task manager:
- Task #48: n8n Rebuild (automation backbone)
- Task #92: Desktop MCP Server (accessibility - SSH automation)

Both have full specs in docs/tasks/ folders.
Now all documented tasks are visible in mobile manager.

tasks/task-048-n8n-rebuild.md

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+---
+number: 48
+title: n8n Rebuild
+priority: P2-Medium
+status: Planned
+blocker: false
+owner: Michael
+full_spec: docs/tasks/task-048-n8n-rebuild/
+---
+
+# Task #48: n8n Rebuild
+
+**Automation backbone for Firefrost operations**
+
+## Status
+Clean slate — n8n installed but no workflows configured yet.
+
+## Next Steps
+1. Configure Buffer MCP for social media automation
+2. Set up subscriber webhooks from Arbiter
+3. Build ModpackChecker update announcements
+4. Configure server status monitoring
+
+## Links
+- Full spec: `docs/tasks/task-048-n8n-rebuild/`
+- n8n Dashboard: https://n8n.firefrostgaming.com
+- Buffer MCP: https://mcp.buffer.com

tasks/task-092-desktop-mcp.md

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+---
+number: 92
+title: Desktop MCP Server on Raspberry Pi
+priority: P1-High
+status: Planned
+blocker: false
+owner: Michael
+full_spec: docs/tasks/task-092-desktop-mcp/
+---
+
+# Task #92: Desktop MCP Server on Raspberry Pi
+
+**Accessibility accommodation — SSH automation for reduced copy-paste**
+
+## Status
+Full 605-line spec complete with Cloudflare Tunnel architecture.
+
+## Next Steps
+1. Set up local MCP server on Windows laptop
+2. Configure Cloudflare Tunnel for mobile dispatch
+3. Build Discord Ops Bot integration
+4. Connect to n8n for command bridging
+
+## Links
+- Full spec: `docs/tasks/task-092-desktop-mcp/`
+- Estimated time: 2-3 hours (browser-based setup)
+- Gemini consultation: Complete architectural review