feat(learning): complete Program F export substrate

Implement the durable resource/workspace/index/session/memory/export
substrate through Program F, add the workspace export bundle route,
and sync the bilingual docs to the new verified HEAD state.

Author: Jacobinwwey

docs/brainstorms/2026-05-25-multiplatform-lightweight-rag-agent-architecture-plan.md

@@ -7,6 +7,8 @@ This page tracks active and archived brainstorming outputs used before implement
 
 | English | 中文 | Date |
 |---|---|---|
+| [Deep Student Comparison Next-Phase Plan](2026-05-26-deep-student-comparison-next-phase-plan.md) | 基于 Deep Student 对照的下一阶段推进计划 | 2026-05-26 |
+| [Multiplatform Lightweight RAG and Agent Architecture Plan](2026-05-25-multiplatform-lightweight-rag-agent-architecture-plan.md) | 多平台轻量级 RAG 与 Agent 架构推进计划 | 2026-05-25 |
 | [Agent Workspace Contract Closure Next Direction](2026-04-14-agent-workspace-contract-closure-next-direction-requirements.md) | Agent 工作区合约闭合下一步方向 | 2026-04-14 |
 | [Markdown Reader Upgrade Alignment](2026-04-13-markdown-reader-upgrade-alignment-requirements.md) | Markdown 阅读器升级对齐 | 2026-04-13 |
 | [Agent Workspace Architecture Progress](2026-04-13-agent-workspace-architecture-progress-and-next-direction-requirements.md) | Agent 工作区架构进展 | 2026-04-13 |
@@ -18,6 +20,8 @@ This page tracks active and archived brainstorming outputs used before implement
 
 - Use brainstorm documents to align problem framing, requirements, and scope boundaries.
 - 使用头脑风暴文档对齐问题框架、需求和范围边界。
+- The 2026-05-26 deep-student comparison plan now includes the implemented Program A-F closure state at current HEAD.
+- 2026-05-26 的 deep-student 对照方案文档现已补入当前 HEAD 上 Program A-F 的实际完成状态。
 - Align unresolved-goal state with [Open Goal Audit (2026-05-10)](../open_goal_audit_2026-05-10.md) before finalizing implementation plans.
 - 在定稿实施计划前，请先用 [Open Goal Audit (2026-05-10)](../open_goal_audit_2026-05-10.md) 对齐未完成目标状态。
 - Track implementation execution in:

docs/brainstorms/2026-05-26-deep-student-comparison-next-phase-plan.md

@@ -3,6 +3,32 @@
 This page is the implementation-facing dashboard for the Knowledge Mastery evolution plan.
 It tracks what is already implemented, where the hard gaps remain, and how to verify progress from code and runtime behavior.
 
+## 2026-05-26 Program F Closure
+
+- The deep-student-derived next-phase program is now implemented through Program F at current HEAD.
+- The new durable substrate is no longer only a plan artifact. It now exists in code:
+  - canonical resources and projections: `src/resources/`,
+  - unit/segment indexing lifecycle: `src/indexing/`,
+  - durable workspace/corpus entities: `src/workspace/`,
+  - session/workflow durability: `src/session/`, `src/workflows/`,
+  - typed memory governance and audits: `src/memory/MemoryGovernance.ts`,
+  - deterministic workspace export bundles: `src/export/WorkspaceExportBundle.ts`.
+- `KnowledgeLearningPlatform.ts` now persists and restores those substrate layers alongside graph, mastery, conversation, and telemetry state.
+- `POST /api/knowledge/export/workspace` now exposes the Program F bundle path.
+- Platform export semantics are now explicit rather than inferred:
+  - `src/platform/PlatformCapabilities.ts` describes bundle packaging mode (`full` vs `slim`) and indexed-readiness requirements,
+  - `src/platform/RenderMaterializer.ts` continues to enforce PNG-first materialization where SVG is unsafe.
+
+Fresh verification evidence for this closure:
+
+- `npm.cmd run build:mini`
+- `npm.cmd test -- --runInBand src/resources/ResourceRegistry.test.ts src/workspace/WorkspaceRegistry.test.ts src/indexing/IndexLifecycle.test.ts src/session/SessionStateStore.test.ts src/workflows/WorkflowArtifactStore.test.ts src/memory/MemoryGovernance.test.ts src/export/WorkspaceExportBundle.test.ts src/platform/PlatformCapabilities.test.ts src/platform/RenderMaterializer.test.ts src/routes/registry.contract.test.ts src/learning/store.test.ts src/learning/KnowledgeLearningPlatform.test.ts src/learning/KnowledgeLearningPlatform.persistence.test.ts src/learning/KnowledgeLearningPlatform.program-f.test.ts`
+
+Operational implication:
+
+- mobile slim export and desktop export now converge on the same workspace/resource/index/session/memory substrate,
+- lightweight local RAG and multi-platform export now share one durable scope model instead of parallel ad hoc state paths.
+
 ## 2026-05-10 Open-Goal Sync
 
 - This page is aligned with the repository-wide audit in [Open Goal Audit (2026-05-10)](../../../open_goal_audit_2026-05-10.md).

docs/brainstorms/index.md

@@ -3,6 +3,32 @@
 本页是“知识彻底掌握演进方案”的实现侧进度看板。
 它用于回答三件事：哪些能力已落地、哪些关键缺口仍在、如何用代码与运行时证据验证推进结果。
 
+## 2026-05-26 Program F 收口状态
+
+- 基于 deep-student 对照得出的下一阶段计划，当前 HEAD 已经实现到 Program F。
+- 这套 durable substrate 不再只是规划项，而已经真实落入代码：
+  - canonical resource 与 projection：`src/resources/`，
+  - unit / segment indexing lifecycle：`src/indexing/`，
+  - durable workspace / corpus entity：`src/workspace/`，
+  - session / workflow durability：`src/session/`、`src/workflows/`，
+  - typed memory governance 与 audit：`src/memory/MemoryGovernance.ts`，
+  - deterministic workspace export bundle：`src/export/WorkspaceExportBundle.ts`。
+- `KnowledgeLearningPlatform.ts` 现在会把这些 substrate 层与 graph、mastery、conversation、telemetry 状态一起持久化与恢复。
+- `POST /api/knowledge/export/workspace` 现已作为 Program F 的 bundle 导出入口暴露出来。
+- 平台导出语义也已经显式化，而不再依赖隐式推断：
+  - `src/platform/PlatformCapabilities.ts` 已描述 bundle packaging mode（`full` / `slim`）与 indexed-readiness 要求，
+  - `src/platform/RenderMaterializer.ts` 继续负责在 SVG 不安全的平台上强制 PNG-first materialization。
+
+这次收口的最新验证证据：
+
+- `npm.cmd run build:mini`
+- `npm.cmd test -- --runInBand src/resources/ResourceRegistry.test.ts src/workspace/WorkspaceRegistry.test.ts src/indexing/IndexLifecycle.test.ts src/session/SessionStateStore.test.ts src/workflows/WorkflowArtifactStore.test.ts src/memory/MemoryGovernance.test.ts src/export/WorkspaceExportBundle.test.ts src/platform/PlatformCapabilities.test.ts src/platform/RenderMaterializer.test.ts src/routes/registry.contract.test.ts src/learning/store.test.ts src/learning/KnowledgeLearningPlatform.test.ts src/learning/KnowledgeLearningPlatform.persistence.test.ts src/learning/KnowledgeLearningPlatform.program-f.test.ts`
+
+工程含义：
+
+- mobile slim export 与 desktop export 现在已经收敛到同一套 workspace / resource / index / session / memory substrate，
+- lightweight local RAG 与多平台导出现在共享同一份 durable scope model，而不是各自维护一套 ad hoc 状态路径。
+
 ## 2026-05-12 HEAD 现实校准
 
 - 先前“Phase-1 已收口”的表述对当前 HEAD 过于乐观，现以本节为准。

docs/diataxis/en/explanation/development-progress-dashboard.md

@@ -9,6 +9,8 @@ This site adopts the Diataxis framework to make documentation easier to navigate
 - Use `npm run docs:site:serve` for local browsing during iterative doc updates.
 - Use [Working Docs / Brainstorms](brainstorms/index.md) and [Working Docs / Solutions](solutions/index.md) for in-progress alignment artifacts and durable solution notes.
 - Use [Open Goal Audit (2026-05-10)](open_goal_audit_2026-05-10.md) as the all-docs unresolved-goal snapshot.
+- Track the Program A-F substrate/export closure in [Development Progress Dashboard](diataxis/en/explanation/development-progress-dashboard.md) and [Deep Student Comparison Next-Phase Plan](brainstorms/2026-05-26-deep-student-comparison-next-phase-plan.md).
+- Program A-F 的 substrate / export 收口状态请查看 [Development Progress Dashboard](diataxis/en/explanation/development-progress-dashboard.md) 与 [Deep Student Comparison Next-Phase Plan](brainstorms/2026-05-26-deep-student-comparison-next-phase-plan.md)。
 
 ## English
 

docs/diataxis/zh/explanation/development-progress-dashboard.md

@@ -0,0 +1,100 @@
+import { buildWorkspaceExportBundle } from './WorkspaceExportBundle';
+
+describe('WorkspaceExportBundle', () => {
+    test('builds deterministic slim bundles with readiness failures when projections lack indexed units', () => {
+        const bundle = buildWorkspaceExportBundle({
+            request: {
+                workspaceId: 'optics',
+                exportProfileId: 'mobile-slim',
+            },
+            workspace: {
+                workspaceId: 'optics',
+                corpusId: 'optics',
+                name: 'optics',
+                sourcePathPrefix: 'knowledge_base/optics',
+                languages: ['zh', 'en'],
+                exportProfileId: 'mobile-slim',
+                status: 'active',
+                createdAt: '2026-05-26T00:00:00.000Z',
+                updatedAt: '2026-05-26T00:00:00.000Z',
+            },
+            bindings: [],
+            resources: [],
+            projections: [
+                {
+                    projectionId: 'projection_1',
+                    resourceId: 'resource_1',
+                    projectionKind: 'knowledge_document',
+                    stableKey: 'knowledge_document:doc_a',
+                    status: 'active',
+                    documentId: 'doc_a',
+                    sourcePath: 'Knowledge_Base/optics/doc_a.md',
+                    workspaceId: 'optics',
+                    corpusId: 'optics',
+                    metadata: {},
+                    createdAt: '2026-05-26T00:00:00.000Z',
+                    updatedAt: '2026-05-26T00:00:00.000Z',
+                    deletedAt: null,
+                },
+            ],
+            indexSummary: {
+                totalUnits: 0,
+                totalSegments: 0,
+                states: {
+                    pending: 0,
+                    indexing: 0,
+                    indexed: 0,
+                    failed: 0,
+                    disabled: 0,
+                },
+                activeDocuments: 0,
+                activeAtomUnits: 0,
+            },
+            units: [],
+            segments: [],
+            atoms: [],
+            evidenceSpans: [],
+            relationEdges: [],
+            temporalEdges: [],
+            sessionStates: [],
+            conversationSessions: [],
+            conversationTurns: [],
+            conversationInvocations: [],
+            workflowArtifacts: [],
+            memoryEntries: [],
+            memoryAuditRecords: [],
+            generatedAt: '2026-05-26T00:00:00.000Z',
+        });
+
+        const secondBundle = buildWorkspaceExportBundle({
+            request: {
+                workspaceId: 'optics',
+                exportProfileId: 'mobile-slim',
+            },
+            workspace: bundle.workspace,
+            bindings: bundle.bindings,
+            resources: bundle.resources,
+            projections: bundle.projections,
+            indexSummary: bundle.index.summary,
+            units: bundle.index.units,
+            segments: bundle.index.segments,
+            atoms: bundle.graph.atoms,
+            evidenceSpans: bundle.graph.evidenceSpans,
+            relationEdges: bundle.graph.relationEdges,
+            temporalEdges: bundle.graph.temporalEdges,
+            sessionStates: bundle.runtime.sessionStates,
+            conversationSessions: bundle.runtime.conversationSessions,
+            conversationTurns: bundle.runtime.conversationTurns,
+            conversationInvocations: bundle.runtime.conversationInvocations,
+            workflowArtifacts: bundle.runtime.workflowArtifacts,
+            memoryEntries: bundle.memory.entries,
+            memoryAuditRecords: bundle.memory.auditRecords,
+            generatedAt: '2026-05-26T00:00:00.000Z',
+        });
+
+        expect(bundle.manifest.packagingMode).toBe('slim');
+        expect(bundle.readiness.ready).toBe(false);
+        expect(bundle.readiness.missingIndexedProjectionIds).toEqual(['projection_1']);
+        expect(bundle.manifest.deterministicHash).toBe(secondBundle.manifest.deterministicHash);
+    });
+});