feat: unify execution and add workspace file imports

Remove Ask/Execute modes and general product tool approvals so requests use the selected runtime, enabled capabilities, and execution account permissions. Migrate retired application metadata while preserving user content.

Retire the Results page while retaining conversation images and stored artifacts. Add local and remote workspace file imports, timestamps and sorting, improve image discovery and saving, and refine workspace navigation and supervision responsiveness. Include the accompanying web-search changes, tests, probes, and product documentation.

Remote imports require an updated Agent. Existing artifacts are not automatically copied into project directories. Validation evidence and outstanding failures remain documented in feature progress files; no full test suite or real-model calls were rerun for this commit.

Release note: Run requests without switching work modes, import files into a selected local or remote workspace folder, sort workspace files by date, and keep using conversation images after removal of the Results page.

src/main/assistant/supervisor-service.ts

@@ -9,7 +9,7 @@ import {
 } from '../../shared/supervision-contracts'
 import { reviewScope, type ReviewBatch } from './review-checkpoint'
 import { createHash } from 'node:crypto'
-import type { SupervisionReviewStore, ReviewConfiguration } from './supervision-review-store'
+import type { SupervisionReviewStore, ReviewConfiguration, ReviewState } from './supervision-review-store'
 import type { SupervisionReviewExecution, SupervisionReviewProgress } from '../../shared/supervision-review-contracts'
 
 export type SupervisorSummarizerRequest = {
@@ -186,6 +186,9 @@ export class SupervisorService {
     private readonly review?: {
       database: () => SupervisionReviewStore
       configuration: () => Promise<ReviewConfiguration>
+      initialize?: (runId: string, state: ReviewState, signal: AbortSignal) => Promise<void>
+      resume?: (runId: string, signal: AbortSignal) => Promise<void>
+      context?: (request: SupervisionRunRequest, signal: AbortSignal) => Promise<{ summary: string | undefined; background: SupervisionEvidence[] }>
       withExecution?: (operation: () => Promise<StoredSupervisionResult>) => Promise<StoredSupervisionResult>
       /** Story assignment over published, still unassigned events of the scope. Runs inside the review slot. */
       stories?: (request: SupervisionRunRequest, config: ReviewConfiguration, signal: AbortSignal) => Promise<NonNullable<SupervisionReviewProgress['stories']>>
@@ -337,8 +340,15 @@ export class SupervisorService {
       return { runId, request, evidence: [], output: empty, status, coverage: db.progress(runId) }
     }
     try {
-      if (existing) db.resume(runId)
-      else db.initialize(runId, { ...state, phase: 'collecting' })
+      if (existing) {
+        if (this.review!.resume) await this.review!.resume(runId, controller.signal)
+        else db.resume(runId, controller.signal)
+      } else {
+        const initial = { ...state, phase: 'collecting' as const }
+        if (this.review!.initialize) await this.review!.initialize(runId, initial, controller.signal)
+        else db.initialize(runId, initial, controller.signal)
+      }
+      controller.signal.throwIfAborted()
       // Every candidate offered to any batch, so publication can resolve all chosen identities.
       const offered = new Map<string, SupervisionCandidate>()
       const candidatesFor = async (projectId: string) => {
@@ -348,6 +358,8 @@ export class SupervisorService {
       }
       if (db.progress(runId).remainingSources) db.setPhase(runId, 'extracting')
       const summarize = async (evidence: SupervisionEvidence[], navigation = false, candidates: SupervisionCandidate[] = []) => {
+        controller.signal.throwIfAborted()
+        const context = !navigation && this.review!.context ? await this.review!.context(request, controller.signal) : undefined
         controller.signal.throwIfAborted()
         activity.inFlight++
         let raw: unknown
@@ -358,9 +370,9 @@ export class SupervisorService {
             ? '\nThese inputs are navigation summaries, not original evidence. Return summary, changeDigest and openItems. Omit events, entities, entityChanges and relations or return them as empty arrays. All original leaf results are retained separately.'
             : '\nRetain atomic decisions, constraints, corrections, conflicting statements and unresolved items with source references. Attribute assistant proposals as proposals. Source locators use Unicode code points; split task JSON is a source fragment, not a complete object.') +
             '\nWrite concise navigation while retaining decisions, qualifications and unresolved items. Entity IDs use only ASCII letters, numbers, underscore or hyphen (1..120 characters).',
-          previousSummary: navigation ? undefined : this.store.summary?.(request),
+          previousSummary: navigation ? undefined : context ? context.summary : this.store.summary?.(request),
           outputContract: navigation ? navigationContract : entityContract(candidates),
-          background: navigation ? [] : this.store.background?.(request),
+          background: navigation ? [] : context ? context.background : this.store.background?.(request),
           authorizeTool: async name => { throw new Error(`Supervisor tools are disabled: ${name}`) } })
         } finally { activity.inFlight-- }
         controller.signal.throwIfAborted()