feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard.

Lanes: a durable unit of parallel agent work, one per working directory,
tracked across session restarts. Managed lanes are git worktrees the
dashboard provisions and can reset or remove behind a three-check destroy
guard and a counted preflight; adopted lanes are directories you already
own and are never destroyable.

Pipelines: a lane moves through pipeline stages. A stage the agent declares
with evidence renders green; a stage inferred from the tool-event stream
renders dashed amber and never counts as done. Detection is forward-only
within a 30-minute window, and never writes the declared stage.

Workspace: one page at /run with a lane grid, the selected lane's pipeline,
and a full Claude console behind a disclosure.

plugins/ccam-workflows/.claude-plugin/plugin.json

@@ -0,0 +1,26 @@
+{
+  "name": "ccam-workflows",
+  "description": "Analyze multi-agent orchestration and Workflow-tool fleet runs — DAGs, delegation, concurrency, error propagation, and effectiveness — via the Agent Monitor workflow intelligence API at http://localhost:4820. Maps parent→child subagent edges, scores model delegation and subagent success, surfaces concurrency lanes and serialization bottlenecks, and traces error cascades by agent depth.",
+  "version": "1.0.0",
+  "author": {
+    "name": "Nguyễn Ngọc Trí Vĩ",
+    "url": "https://git.smartgift.io.vn/Smartgift-AI"
+  },
+  "homepage": "https://git.smartgift.io.vn/Smartgift-AI/Claude-Code-Monitor",
+  "repository": {
+    "type": "git",
+    "url": "https://git.smartgift.io.vn/Smartgift-AI/Claude-Code-Monitor.git"
+  },
+  "license": "MIT",
+  "keywords": [
+    "workflows",
+    "orchestration",
+    "subagents",
+    "dag",
+    "fleet",
+    "concurrency",
+    "delegation",
+    "claude-code"
+  ],
+  "categories": ["workflows", "analysis", "monitoring"]
+}