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.

server/data/pipelines/default.json

@@ -0,0 +1,32 @@
+{
+  "id": "default",
+  "name": "Default feature pipeline",
+  "nodes": [
+    { "id": "intake",    "label": "intake",    "icon": "📝", "gate": false, "aliases": ["assigned", "claimed", "start"] },
+    { "id": "plan",      "label": "plan",      "icon": "🧭", "gate": false, "aliases": ["planning", "brainstorm", "design"],
+      "detect": [
+        { "tool": "Skill", "match": "brainstorming|writing-plans" },
+        { "tool": "Write", "match": "docs/.*plan.*\\.md" }
+      ] },
+    { "id": "implement", "label": "implement", "icon": "🛠", "gate": false, "aliases": ["implementing", "coding", "build"],
+      "detect": [
+        { "tool": "Edit" },
+        { "tool": "Write", "match": "^(?!.*(?:^|/)docs/)" }
+      ] },
+    { "id": "tests",     "label": "tests",     "icon": "🧪", "gate": true,  "aliases": ["testing", "unit", "gates", "pre-push-gate"],
+      "detect": [
+        { "tool": "Bash", "match": "\\b(npm (run )?test|pytest|vitest|jest|go test|cargo test)\\b" }
+      ] },
+    { "id": "review",    "label": "review",    "icon": "👀", "gate": true,  "aliases": ["reviewing", "code-review", "self-review"],
+      "detect": [
+        { "tool": "Skill", "match": "code-review|requesting-code-review" },
+        { "tool": "Bash", "match": "git diff|gh pr diff" }
+      ] },
+    { "id": "gate",      "label": "gate",      "icon": "🚦", "gate": true,  "aliases": ["verify", "verification", "sr-gate", "gate-blocked"] },
+    { "id": "ship",      "label": "ship",      "icon": "🔀", "gate": false, "aliases": ["pr", "pr-open", "publishing", "commit", "push"],
+      "detect": [
+        { "tool": "Bash", "match": "git push|gh pr create" }
+      ] },
+    { "id": "done",      "label": "done",      "icon": "✅", "gate": false, "aliases": ["complete", "completed", "merged"] }
+  ]
+}