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.

client/src/i18n/locales/en/splash.json

@@ -0,0 +1,79 @@
+{
+  "greeting": {
+    "morning": "Good morning",
+    "afternoon": "Good afternoon",
+    "evening": "Good evening",
+    "night": "Working late"
+  },
+  "tagline": "Nothing your agents do stays in the dark.",
+  "sub1": "Real-time observability for every Claude Code session.",
+  "sub2": "Tokens, tools, costs, and workflows, all live.",
+  "brand": "Claude Code Monitor",
+  "taglines": [
+    "Nothing your agents do stays in the dark.",
+    "See every move your agents make.",
+    "Your agents, fully observable.",
+    "Every token, tool, and turn — in plain sight.",
+    "Watch your fleet think.",
+    "Where Claude Code sessions come into focus.",
+    "Real-time eyes on every agent.",
+    "From prompt to result, all on the record.",
+    "The control room for your AI agents.",
+    "Every subagent accounted for.",
+    "Know exactly what your agents cost.",
+    "Your agentic workflows, made legible.",
+    "Observe. Measure. Optimize.",
+    "Mission control for Claude Code.",
+    "Turn agent chaos into a clear picture.",
+    "The receipts for every run."
+  ],
+  "subs": [
+    [
+      "Real-time observability for every Claude Code session.",
+      "Tokens, tools, costs, and workflows, all live."
+    ],
+    [
+      "Live sessions, agents, and events as they happen.",
+      "Per-model token and cost breakdowns, no guesswork."
+    ],
+    [
+      "Trace every tool call across your agent tree.",
+      "Spot the slow turn, the costly model, the silent failure."
+    ],
+    ["Hooks stream straight to a local dashboard.", "Your data never leaves your machine."],
+    [
+      "Watch orchestrators delegate to subagents.",
+      "DAGs, concurrency, and error propagation, visualized."
+    ],
+    [
+      "Cost tracking down to the cache token.",
+      "Per-model pricing with compaction-aware baselines."
+    ],
+    [
+      "Every session, agent, and event in one place.",
+      "Search, replay, and inspect without leaving the room."
+    ],
+    [
+      "From SessionStart to SessionEnd, captured.",
+      "Compactions, API errors, and turn durations included."
+    ],
+    [
+      "Know which model did what, and what it cost.",
+      "Subagents priced at their own rate, not the orchestrator's."
+    ],
+    ["Workflow fleets and inner agents, surfaced.", "Even the runs that never fire a hook."],
+    ["A local-first window into your agents.", "No cloud, no account, no telemetry."],
+    [
+      "Measure productivity, not vibes.",
+      "Velocity, cache efficiency, and tool effectiveness, scored."
+    ],
+    [
+      "Catch the anomaly before the invoice does.",
+      "Cost outliers and token spikes, flagged early."
+    ],
+    [
+      "Your Claude Code config, fully mapped.",
+      "Skills, agents, hooks, MCP, and memory at a glance."
+    ]
+  ]
+}