feat: add economy/maximum presets, tool-lab and subagent-cursor extensions

- new economy and maximum agent presets with three-role pipeline skill
- new packages/extensions/tool-lab (home-lab ComfyUI/Docling/Whishper tools)
- new packages/subagent/subagent-cursor provider
- openrouter balance UI with on-demand refresh
- session projection context-seed boundary fold
- regenerate docs catalogs; keep local searxng benchmark scripts

packages/client/ui-trajectory/src/client/TrajectoryView.tsx

@@ -84,6 +84,7 @@ interface UsageLike {
   cacheWriteTokens?: number
   outputTokens?: number
   reasoningTokens?: number
+  costUsd?: number
 }
 
 function requestUsage(value: unknown): TrajectoryUsage | undefined {
@@ -205,7 +206,9 @@ export function TrajectoryView({
         const provider = request?.provenance?.provider ?? node?.provenance?.provider
         const model = request?.provenance?.model ?? node?.provenance?.model
         const requestConfig = request?.requestConfig ?? node?.requestConfig
-        const stepCostUsd = stepCosts?.[`${turn}:${step}`]
+        const directCostUsd = (entry.request?.usage as UsageLike | undefined)?.costUsd
+          ?? (entry.node?.usage as UsageLike | undefined)?.costUsd
+        const stepCostUsd = directCostUsd ?? stepCosts?.[`${turn}:${step}`]
         numbered.push({
           seq: entry.seq,
           turn,
@@ -232,6 +235,7 @@ export function TrajectoryView({
         continue
       }
       const request = entry.request
+      const directCostUsd = (request.usage as UsageLike | undefined)?.costUsd
       numbered.push({
         seq: request.startSeq,
         turn: request.turn,
@@ -253,6 +257,7 @@ export function TrajectoryView({
         ...(request.requestConfig === undefined ? {} : { requestConfig: request.requestConfig }),
         ...(usage === undefined ? {} : { usage }),
         ...(cumulativeUsage === undefined ? {} : { cumulativeUsage }),
+        ...(directCostUsd === undefined ? {} : { stepCostUsd: directCostUsd }),
       })
     }
 

packages/client/ui-trajectory/src/client/layout.ts

@@ -48,6 +48,7 @@ interface UsageLike {
   cacheWriteTokens?: number
   outputTokens?: number
   reasoningTokens?: number
+  costUsd?: number
 }
 
 /** Cell plus absolute ms for group wall-span descriptions. */

packages/client/ui-trajectory/src/client/trajectory-assistant-definition.ts

@@ -18,6 +18,7 @@ interface UsageValue {
   readonly cacheReadTokens?: number
   readonly cacheWriteTokens?: number
   readonly reasoningTokens?: number
+  readonly costUsd?: number
 }
 
 interface RetryValue {
@@ -101,6 +102,9 @@ function addUsage(current: UsageValue | undefined, next: UsageValue): UsageValue
     ...(current?.reasoningTokens === undefined && next.reasoningTokens === undefined
       ? {}
       : { reasoningTokens: (current?.reasoningTokens ?? 0) + (next.reasoningTokens ?? 0) }),
+    ...(current?.costUsd === undefined && next.costUsd === undefined
+      ? {}
+      : { costUsd: (current?.costUsd ?? 0) + (next.costUsd ?? 0) }),
   }
 }
 

packages/client/ui-trajectory/tests/views.client.spec.tsx

@@ -1226,6 +1226,27 @@ describe('TrajectoryView state', () => {
     expect(screen.getByText('$0.0028')).toBeTruthy()
   })
 
+  it('attaches the per-step cost directly from node usage even when projection is undefined', () => {
+    const nodesWithCost = [
+      NODES[0]!,
+      {
+        ...NODES[1]!,
+        usage: { inputTokens: 100, outputTokens: 50, costUsd: 0.0045 },
+      },
+      NODES[2]!,
+      NODES[3]!,
+    ]
+    render(
+      <TrajectoryView
+        {...standaloneProps(nodesWithCost)}
+        {...standaloneHistory(historySnapshot(nodesWithCost))}
+        {...standaloneDuration()}
+        useProjection={(() => undefined) as never}
+      />,
+    )
+    expect(screen.getByRole('button', { name: 'Request #1 · $0.0045' })).toBeTruthy()
+  })
+
 })
 
 describe('node half', () => {