feat: salvage plan orchestrate workflow

- add plan-orchestrate skill from closed PR #1603

- add Longhand MCP config from closed PR #1503

- sync catalog counts to 54 agents, 207 skills, 70 commands

mcp-configs/mcp-servers.json

@@ -41,6 +41,11 @@
       "args": ["omega-memory", "serve"],
       "description": "Persistent agent memory with semantic search, multi-agent coordination, and knowledge graphs — run via uvx (richer than the basic memory store)"
     },
+    "longhand": {
+      "command": "longhand",
+      "args": ["mcp-server"],
+      "description": "Lossless Claude Code session history — indexes raw tool calls, file edits, and thinking blocks from ~/.claude/projects/*.jsonl into local SQLite + ChromaDB before Claude Code rotates them. Complements memory/omega-memory (synthesized) with verbatim recall. Install: pip install longhand && longhand setup"
+    },
     "sequential-thinking": {
       "command": "npx",
       "args": ["-y", "@modelcontextprotocol/server-sequential-thinking"],