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/host/apiproxy/src/api-proxy.ts

@@ -57,7 +57,7 @@ import {
   truncateUnicodeCodePoints,
 } from './api/session-search.ts'
 // Type-only: resolves `ctx.get('sessionProjections')` to the projection registry.
-import type {} from '@deepseek-ai/dsh-session-projection'
+import { foldContextOf } from '@deepseek-ai/dsh-session-projection'
 // Type-only: resolves `ctx.get('tasks')` to the background job registry.
 import type {} from '@deepseek-ai/dsh-jobs'
 import type { JobSnapshot } from '@deepseek-ai/dsh-jobs'
@@ -838,11 +838,12 @@ function listProjectionsFor(ctx: Context, meta: SessionHeader, session: Session
 /** Projection baseline for a detached history tail without Agent activation. */
 function detachedProjectionsFor(
   ctx: Context,
+  header: SessionHeader,
   events: readonly SessionEvent[],
 ): SessionProjectionsBlock | undefined {
   const registry = ctx.get('sessionProjections')
   if (registry === undefined) return undefined
-  return registry.restore({}, events, 0).snapshot
+  return registry.restore({}, events, 0, foldContextOf(header)).snapshot
 }
 
 /**
@@ -1534,7 +1535,7 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
     includeProjections: boolean,
   ): { events: SessionEvent[]; projections?: SessionProjectionsBlock } {
     if (source.kind === 'detached') {
-      const projections = includeProjections ? detachedProjectionsFor(ctx, source.events) : undefined
+      const projections = includeProjections ? detachedProjectionsFor(ctx, source.header, source.events) : undefined
       return { events: source.events, ...projections === undefined ? {} : { projections } }
     }
     const events = [...source.session.events]
@@ -2632,7 +2633,7 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
             header = inspected.meta
             events = inspected.events
             projections = beforeSeq === undefined
-              ? subagentHistoryProjections(ctx, childSessionId, () => detachedProjectionsFor(ctx, inspected.events))
+              ? subagentHistoryProjections(ctx, childSessionId, () => detachedProjectionsFor(ctx, inspected.meta, inspected.events))
               : undefined
           } catch (error: unknown) {
             if (signal?.aborted) {