chore: moved information-space service to history

2026-02-08 21:26:54 +01:00
parent 27847df9bd
commit 9ab135bb03
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--- a/docs/roadmap/information-space-service/README.md
+++ b/docs/roadmap/information-space-service/README.md
@@ -1,142 +0,0 @@
-# Headless Information Space Service Evolution
-
-## Vision
-
-Evolve markitect into a headless markdown transclusion-based information space service that supports:
-
-1. **HTML Rendering Mode** - Render markdown to HTML, track changes, update space
-2. **Directory Structure Mode** - Represent information as canonical directory with markdown files
-3. **Multiple Frontends** - Support different interaction modes via clean API layer
-
-## What is an Information Space?
-
-An Information Space is a first-class abstraction that:
-
- Contains a collection of documents with transclusion relationships
- Maintains persistent context for variable resolution
- Tracks document dependencies for cache invalidation
- Can be rendered to HTML or exported to directory structure
- Supports event-driven updates and subscriptions
- Can reference other spaces (composability)
-
-## Key Capabilities
-
-| Phase | Capability | Description |
-|-------|-----------|-------------|
-| 1 | InformationSpace Entity | Space abstraction with identity, metadata, lifecycle |
-| 2 | Event System | In-process pub/sub for space events |
-| 3 | Persistent Transclusion | Store context state, track references |
-| 4 | HTML Rendering | Render resolved markdown to HTML with caching |
-| 5 | Directory Mode | Bidirectional sync with filesystem |
-| 6 | API Layer | GraphQL, REST, CLI interfaces |
-| 7 | Composability | Space references and inheritance |
-| 8 | Git History | Optional git-based version control |
-
-## Architecture Overview
-
-```
-┌─────────────────────────────────────────────────────────────┐
-│                       API Layer                              │
-│   GraphQL Schema  │  REST Endpoints  │  CLI Commands        │
-├─────────────────────────────────────────────────────────────┤
-│                     Service Layer                            │
-│   SpaceService  │  RenderService  │  SyncService            │
-├─────────────────────────────────────────────────────────────┤
-│                     Domain Layer                             │
-│   InformationSpace │ SpaceDocument │ SpaceEvent │ EventBus  │
-│   PersistentTransclusionContext │ ReferenceGraph            │
-├─────────────────────────────────────────────────────────────┤
-│                    Storage Layer                             │
-│   SpaceRepository │ EventStore │ Cache Backend              │
-├─────────────────────────────────────────────────────────────┤
-│                  Existing Markitect                          │
-│   DatabaseManager │ TransclusionEngine │ VariantFactory     │
-│   PluginRegistry │ QueryParadigms │ ASTService              │
-└─────────────────────────────────────────────────────────────┘
-```
-
-## Integration Strategy
-
-The Information Space Service builds on existing markitect infrastructure:
-
-| Existing Component | Integration |
-|-------------------|-------------|
-| `TransclusionContext` | Extended with `PersistentTransclusionContext` |
-| `VariantFactory` | Used for directory export/import |
-| `PluginRegistry` | Add SPACE_RENDERER, SPACE_SYNC, EVENT_HANDLER types |
-| `DatabaseManager` | Add space-related tables |
-| `GraphQL Schema` | Extend with Space types and mutations |
-
-## Project Status
-
- [ ] **Phase 0**: Project Organization (prerequisite cleanup)
- [ ] **Phase 1**: Foundation (Space entity, repository)
- [ ] **Phase 2**: Event System
- [ ] **Phase 3**: Persistent Transclusion
- [ ] **Phase 4**: HTML Rendering Mode
- [ ] **Phase 5**: Directory Mode
- [ ] **Phase 6**: API Layer
- [ ] **Phase 7**: Composability
- [ ] **Phase 8**: Git History (optional)
-
-## Documentation
-
- [WORKPLAN.md](WORKPLAN.md) - Detailed implementation workplan
- [PROJECT_STRUCTURE.md](../../PROJECT_STRUCTURE.md) - Current project structure
-
-## Usage Example (Target State)
-
-```python
-from markitect.spaces import SpaceService, InformationSpace
-
-# Create a space
-service = SpaceService()
-space = await service.create_space("my-docs", description="Documentation space")
-
-# Add documents
-await service.add_document(space, "/intro.md", content="# Introduction")
-await service.add_document(space, "/getting-started.md", content="# Getting Started")
-
-# Render to HTML
-html_output = await service.render(space, theme="default")
-
-# Export to directory
-await service.export_to_directory(space, "./output/")
-
-# Watch for changes
-async for event in service.subscribe(space):
-    print(f"Change detected: {event.type} on {event.document_path}")
-```
-
-## CLI Commands (Target State)
-
-```bash
-# Space management
-markitect space create my-space --description "My documentation"
-markitect space list
-markitect space show my-space
-
-# Document management
-markitect space add-doc my-space --path "/intro.md" --file ./intro.md
-markitect space list-docs my-space
-
-# Rendering
-markitect space render my-space --output ./html/ --theme default
-
-# Directory sync
-markitect space sync my-space --directory ./my-space-dir/ --bidirectional
-
-# History (Phase 8)
-markitect space history log my-space
-markitect space history diff my-space --rev HEAD~1
-```
-
-## Contributing
-
-See the main project CONTRIBUTING.md for guidelines. For this initiative specifically:
-
-1. Follow the phased implementation order
-2. Write tests before implementing features
-3. Update documentation as you go
-4. Use the event system for loose coupling
-5. Maintain backward compatibility
--- a/docs/roadmap/information-space-service/WORKPLAN.md
+++ b/docs/roadmap/information-space-service/WORKPLAN.md
@@ -1,714 +0,0 @@
-# Headless Information Space Service - Implementation Workplan
-
-## Overview
-
-This workplan details the implementation phases for evolving markitect into a headless markdown transclusion-based information space service.
-
---
-
-## Phase 0: Project Organization (Prerequisite)
-
-### Current State Issues
- **Hybrid layout** - Mix of root-level packages and monolithic `/markitect/`
- **Flat root in markitect** - 34 .py files at `/markitect/` root level
- **No structure documentation** - Missing PROJECT_STRUCTURE.md (now created)
-
-### Reorganization Tasks
-
-| ID | Task | Description | Status |
-|----|------|-------------|--------|
-| ORG-001 | Create PROJECT_STRUCTURE.md | Document current layout and rationale | Done |
-| ORG-002 | Create `/markitect/core/` | Move parser, serializer, document_manager | Pending |
-| ORG-003 | Create `/markitect/schema/` | Consolidate 6 schema_*.py files | Pending |
-| ORG-004 | Create `/markitect/storage/` | Group database.py, cache modules | Pending |
-| ORG-005 | Update imports | Fix all import statements after moves | Pending |
-| ORG-006 | Verify tests | Ensure all tests pass after moves | Pending |
-
-### Target Structure After Phase 0
-
-```
-markitect/
-├── core/                    # Core infrastructure
-│   ├── __init__.py
-│   ├── parser.py           # (from markitect/)
-│   ├── serializer.py       # (from markitect/)
-│   ├── document_manager.py # (from markitect/)
-│   └── workspace.py        # (from markitect/)
-├── schema/                  # Schema management
-│   ├── __init__.py
-│   ├── validator.py        # (from schema_validator.py)
-│   ├── generator.py        # (from schema_generator.py)
-│   ├── loader.py           # (from schema_loader.py)
-│   ├── analyzer.py         # (from schema_analyzer.py)
-│   ├── refiner.py          # (from schema_refiner.py)
-│   └── naming.py           # (from schema_naming.py)
-├── storage/                 # Storage concerns
-│   ├── __init__.py
-│   └── database.py         # (from markitect/)
-└── spaces/                  # Information spaces (Phase 1+)
-```
-
---
-
-## Phase 1: Foundation
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-001 | InformationSpace Entity | First-class space abstraction with identity, metadata, lifecycle | Critical |
-| CAP-002 | SpaceRepository | CRUD operations for spaces with SQLite backing | Critical |
-| CAP-003 | Document-Space Association | Link documents to spaces with membership tracking | Critical |
-| CAP-004 | Space Metadata Schema | Extensible metadata schema for space configuration | High |
-| CAP-005 | Database Migrations | Schema evolution for space-related tables | High |
-
-### Implementation Tasks
-
-**Week 1: Core Models**
- Create `markitect/spaces/models.py`
-  - `InformationSpace` dataclass with id, name, description, metadata, config
-  - `SpaceDocument` dataclass for document membership
-  - `SpaceConfig` dataclass for space settings
- Create `markitect/spaces/repositories/interfaces.py`
- Unit tests for models
-
-**Week 2: Repository Implementation**
- Create `markitect/spaces/repositories/sqlite.py`
- Implement `ISpaceRepository` for SQLite
- Implement `IDocumentAssociationRepository`
- Database migration scripts
- Repository unit tests
-
-**Week 3: Basic SpaceService**
- Create `markitect/spaces/services/space_service.py`
- CRUD operations for spaces
- Document add/remove operations
- Integration tests
-
-### Database Schema
-
-```sql
-CREATE TABLE spaces (
-    id TEXT PRIMARY KEY,
-    name TEXT UNIQUE NOT NULL,
-    description TEXT,
-    metadata JSON,
-    config JSON,
-    parent_space_id TEXT REFERENCES spaces(id),
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
-);
-
-CREATE TABLE space_documents (
-    id TEXT PRIMARY KEY,
-    space_id TEXT NOT NULL REFERENCES spaces(id),
-    document_id TEXT NOT NULL,
-    space_path TEXT NOT NULL,
-    order_index INTEGER DEFAULT 0,
-    metadata JSON,
-    added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    UNIQUE(space_id, space_path)
-);
-```
-
-### Verification
-```bash
-pytest tests/unit/spaces/test_*_model.py
-pytest tests/unit/spaces/test_*_repository.py
-pytest tests/integration/spaces/test_space_service_integration.py
-```
-
---
-
-## Phase 2: Event System
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-010 | SpaceEvent Base | Event dataclass with type, payload, timestamp | Critical |
-| CAP-011 | Event Bus | In-process publish/subscribe for space events | Critical |
-| CAP-012 | Event Handlers Registry | Register/unregister event handlers by type | High |
-| CAP-013 | Change Detection | Detect document changes via content hash comparison | High |
-| CAP-014 | Event Persistence | Store events for replay/audit | Medium |
-
-### Implementation Tasks
-
-**Week 4: Event Infrastructure**
- Create `markitect/spaces/events/models.py`
-  - `SpaceEvent` dataclass with event_id, type, space_id, payload, timestamp
-  - `SpaceEventType` enum (DOCUMENT_ADDED, DOCUMENT_UPDATED, DOCUMENT_REMOVED, etc.)
- Create `markitect/spaces/events/bus.py`
-  - `EventBus` with sync/async handler support
-  - Handler registration by event type
- Unit tests for event bus
-
-**Week 5: Integration**
- Wire events into SpaceService (emit on document operations)
- Implement change detection (content hash comparison)
- Optional: event persistence table
- Integration tests for event flow
-
-### Event Types
-
-```python
-class SpaceEventType(Enum):
-    SPACE_CREATED = "space.created"
-    SPACE_UPDATED = "space.updated"
-    SPACE_DELETED = "space.deleted"
-    DOCUMENT_ADDED = "document.added"
-    DOCUMENT_UPDATED = "document.updated"
-    DOCUMENT_REMOVED = "document.removed"
-    DOCUMENT_MOVED = "document.moved"
-    VARIABLE_SET = "variable.set"
-    RENDER_COMPLETED = "render.completed"
-    SYNC_COMPLETED = "sync.completed"
-```
-
-### Verification
-```bash
-pytest tests/unit/spaces/test_event_bus.py
-pytest tests/integration/spaces/test_event_propagation.py
-```
-
---
-
-## Phase 3: Persistent Transclusion Context
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-020 | Persistent TransclusionContext | Store context state in database | Critical |
-| CAP-021 | Cross-Space References | Resolve transclusions across space boundaries | High |
-| CAP-022 | Reference Graph | Track document dependencies for invalidation | High |
-| CAP-023 | Variable Scope Layers | Space-level, document-level, request-level variables | Medium |
-| CAP-024 | Transclusion Cache Invalidation | Invalidate rendered content on dependency change | High |
-
-### Implementation Tasks
-
-**Week 6: Persistent Context**
- Create `markitect/spaces/transclusion/persistent_context.py`
- Extend existing `TransclusionContext` with DB persistence
- Space-scoped variable storage
-
-**Week 7: Reference Graph**
- Implement reference tracking during transclusion resolution
- Cross-space reference resolution with space:// protocol
- Variable scope layers (space → document → request)
-
-**Week 8: Cache Invalidation**
- Wire change events to cache invalidation
- Dependency-aware cache clearing
- Integration tests
-
-### Database Schema Additions
-
-```sql
-CREATE TABLE space_variables (
-    space_id TEXT NOT NULL REFERENCES spaces(id),
-    name TEXT NOT NULL,
-    value JSON,
-    scope TEXT DEFAULT 'space',
-    PRIMARY KEY(space_id, name)
-);
-
-CREATE TABLE transclusion_references (
-    source_doc_id TEXT NOT NULL,
-    target_doc_id TEXT NOT NULL,
-    space_id TEXT NOT NULL REFERENCES spaces(id),
-    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    PRIMARY KEY(source_doc_id, target_doc_id, space_id)
-);
-```
-
-### Verification
-```bash
-pytest tests/unit/spaces/test_persistent_context.py
-pytest tests/unit/spaces/test_reference_graph.py
-pytest tests/integration/spaces/test_transclusion_persistence.py
-```
-
---
-
-## Phase 4: HTML Rendering Mode
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-030 | SpaceRenderer Base | Abstract renderer interface | Critical |
-| CAP-031 | MarkdownToHTMLRenderer | Render resolved markdown to HTML | Critical |
-| CAP-032 | Rendering Cache | Cache rendered output with invalidation | High |
-| CAP-033 | Theme Support | Apply themes to rendered HTML | Medium |
-| CAP-034 | Incremental Rendering | Re-render only changed documents | Medium |
-
-### Implementation Tasks
-
-**Week 9: Renderer Base**
- Create `markitect/spaces/rendering/base.py` - SpaceRenderer ABC
- Create `markitect/spaces/rendering/html_renderer.py` - MarkdownToHTMLRenderer
- Integrate with existing `CleanDocumentManager`
-
-**Week 10: Caching and Themes**
- Implement render output caching (keyed by content hash)
- Theme integration using existing theme system
- Invalidation on dependency change via events
-
-**Week 11: Incremental Rendering**
- Re-render only affected documents on change
- Rendering events emission
- E2E tests for render workflow
-
-### Verification
-```bash
-pytest tests/e2e/spaces/test_html_rendering_workflow.py
-```
-
---
-
-## Phase 5: Directory Mode
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-040 | SpaceToDirectory Exporter | Export space to canonical directory structure | Critical |
-| CAP-041 | DirectoryToSpace Importer | Import directory structure as space | Critical |
-| CAP-042 | Bidirectional Sync | Detect and sync changes both directions | High |
-| CAP-043 | Filesystem Watcher | Watch directory for external changes | Medium |
-| CAP-044 | Conflict Resolution | Handle conflicts in bidirectional sync | Medium |
-
-### Implementation Tasks
-
-**Week 12: Export**
- Create `markitect/spaces/sync/directory_exporter.py`
- Integrate with existing `VariantFactory`
- Support flat/hierarchical/semantic variants
-
-**Week 13: Import and Sync**
- Create `markitect/spaces/sync/directory_importer.py`
- Create `markitect/spaces/sync/bidirectional.py`
- Conflict detection (modification time, content hash)
-
-**Week 14: Filesystem Watcher**
- Implement watcher using `watchdog` library
- Sync events emission
- E2E tests for bidirectional sync
-
-### Canonical Directory Structure
-
-```
-.markitect/spaces/{space-name}/
-├── .space.yaml          # Space metadata and config
-├── documents/           # Document files
-│   ├── intro.md
-│   ├── getting-started.md
-│   └── advanced/
-│       └── topics.md
-└── assets/              # Associated assets
-```
-
-### Verification
-```bash
-pytest tests/e2e/spaces/test_directory_mode_workflow.py
-```
-
---
-
-## Phase 6: API Layer
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-060 | SpaceService | Service layer orchestrating space operations | Critical |
-| CAP-061 | GraphQL Space Schema | Extend existing GraphQL with space types | High |
-| CAP-062 | REST Endpoints | Alternative REST API for spaces | Medium |
-| CAP-063 | WebSocket Subscriptions | Real-time event subscriptions | Medium |
-| CAP-064 | CLI Space Commands | CLI commands for space management | High |
-
-### Implementation Tasks
-
-**Week 15: GraphQL Extension**
- Extend `markitect/graphql/schema.py` with Space types
- Add mutations: createSpace, updateSpace, deleteSpace
- Add queries: space, spaces, spaceDocuments
- Add subscriptions: onSpaceEvent
-
-**Week 16: CLI Commands**
- Add to `markitect/cli.py`:
-  - `markitect space create/list/show/delete`
-  - `markitect space add-doc/remove-doc/list-docs`
-  - `markitect space render`
-  - `markitect space sync`
-
-**Week 17: WebSocket and Polish**
- WebSocket subscriptions for real-time events
- Documentation updates
- Final integration testing
-
-### GraphQL Schema Extensions
-
-```graphql
-type InformationSpace {
-  id: ID!
-  name: String!
-  description: String
-  documents: [SpaceDocument!]!
-  config: SpaceConfig!
-  parentSpace: InformationSpace
-  createdAt: DateTime!
-  updatedAt: DateTime!
-}
-
-type SpaceDocument {
-  id: ID!
-  spacePath: String!
-  content: String!
-  metadata: JSON
-}
-
-type Mutation {
-  createSpace(input: CreateSpaceInput!): InformationSpace!
-  addDocument(spaceId: ID!, input: AddDocumentInput!): SpaceDocument!
-  renderSpace(spaceId: ID!, options: RenderOptions): RenderResult!
-}
-
-type Subscription {
-  onSpaceEvent(spaceId: ID!): SpaceEvent!
-}
-```
-
-### Verification
-```bash
-pytest tests/integration/spaces/
-pytest tests/e2e/spaces/
-markitect space --help  # Verify CLI
-```
-
---
-
-## Phase 7: Composability
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-050 | Space References | Spaces can reference other spaces | High |
-| CAP-051 | Space Inheritance | Child spaces inherit parent context | Medium |
-| CAP-053 | Space Access Control | Basic permission model for space access | Medium |
-
-### Implementation Tasks
-
-**Week 18-19: Space References**
- Space-to-space references via space:// protocol
- Variable inheritance from parent spaces
- Basic access control (read/write/admin)
-
-**Week 20: Final Integration**
- Complete E2E test suite
- Performance testing
- User documentation
-
-### Space Reference Protocol
-
-```markdown
-<!-- Reference document from another space -->
-{{transclude space://other-space/path/to/doc.md}}
-
-<!-- Reference with variable override -->
-{{transclude space://shared-components/header.md | title="My Page"}}
-```
-
---
-
-## Phase 8: Git History Tracking (Optional)
-
-### Capability Requirements
-
-| ID | Capability | Description | Priority |
-|----|-----------|-------------|----------|
-| CAP-070 | History Configuration | Per-space history tracking configuration | High |
-| CAP-071 | HistoryBackend Interface | Abstract interface for history backends | High |
-| CAP-072 | GitHistoryBackend | Git implementation of history backend | High |
-| CAP-073 | Canonical Directory Binding | Bind space to canonical directory for git | High |
-| CAP-074 | Event-Driven Commits | Commit on document change events | Medium |
-| CAP-075 | History Query API | Query commits, diffs, branches | High |
-| CAP-076 | History CLI Commands | CLI for log, diff, restore, checkout | High |
-| CAP-077 | Versioned Read/Render | Read/render documents at specific versions | Medium |
-
-### Implementation Tasks
-
-**Week 21: History Infrastructure**
- Create `markitect/spaces/history/interfaces.py` - IHistoryBackend ABC
- Create `markitect/spaces/history/models.py` - Commit, HistoryEntry dataclasses
- Add `SpaceConfig` fields: history_enabled, history_backend, history_options
- Add `SPACE_SYNC` to PluginType enum
-
-**Week 22: Git Backend**
- Create `markitect/spaces/history/git_backend.py`
- Leverage existing `legacy/git_tracker.py` patterns
- Create event handlers for auto-commit on document changes
- Integration tests
-
-**Week 23: API and CLI**
- History query service for log, diff, branches
- CLI commands: `markitect space history log/diff/restore/checkout`
- Extend read/render with `--version` option
- E2E tests
-
-### Integration Diagram
-
-```
-Document Update Flow (with history enabled):
-
-User updates document
-        │
-        ▼
-┌───────────────────┐
-│   SpaceService    │
-│  update_document()│
-└────────┬──────────┘
-         │ emit event
-         ▼
-┌───────────────────┐     ┌─────────────────────┐
-│    Event Bus      │────▶│ GitHistoryHandler   │
-│ DOCUMENT_UPDATED  │     │ (subscribed)        │
-└───────────────────┘     └──────────┬──────────┘
-                                     │
-                          ┌──────────▼──────────┐
-                          │ DirectorySyncService │
-                          └──────────┬──────────┘
-                                     │ writes to
-                          ┌──────────▼──────────┐
-                          │ Canonical Directory  │
-                          │ .markitect/spaces/X/ │
-                          └──────────┬──────────┘
-                                     │
-                          ┌──────────▼──────────┐
-                          │   GitHistoryBackend  │
-                          │ git add && git commit│
-                          └─────────────────────┘
-```
-
-### Verification
-```bash
-markitect space create my-space --history-enabled
-markitect space add-doc my-space --content "# V1"
-markitect space update-doc my-space/doc.md --content "# V2"
-markitect space history log my-space
-markitect space history diff my-space --rev HEAD~1
-```
-
---
-
-## Timeline Summary
-
-| Phase | Focus | Duration |
-|-------|-------|----------|
-| 0 | Project Organization | 1 week |
-| 1 | Foundation | 3 weeks |
-| 2 | Event System | 2 weeks |
-| 3 | Persistent Transclusion | 3 weeks |
-| 4 | HTML Rendering Mode | 3 weeks |
-| 5 | Directory Mode | 3 weeks |
-| 6 | API Layer | 3 weeks |
-| 7 | Composability | 3 weeks |
-| 8 | Git History (Optional) | 3 weeks |
-
-**Total: 21-24 weeks** (5-6 months)
-
-### Parallel Work Opportunities
- Phase 4 (HTML) and Phase 5 (Directory) can run in parallel after Phase 3
- Phase 8 can start in parallel with Phase 7
- Documentation can be written incrementally
- CLI commands can start in parallel with Phase 4/5
-
---
-
-## Files to Create
-
-### Phase 0
-```
-docs/PROJECT_STRUCTURE.md           # Done
-roadmap/information-space-service/  # Done
-├── README.md                       # Done
-└── WORKPLAN.md                     # This file
-markitect/core/                     # To do
-markitect/schema/                   # To do
-markitect/storage/                  # To do
-```
-
-### Phase 1+
-```
-markitect/spaces/
-├── __init__.py
-├── models.py
-├── events/
-│   ├── __init__.py
-│   ├── models.py
-│   └── bus.py
-├── repositories/
-│   ├── __init__.py
-│   ├── interfaces.py
-│   └── sqlite.py
-├── transclusion/
-│   ├── __init__.py
-│   └── persistent_context.py
-├── rendering/
-│   ├── __init__.py
-│   ├── base.py
-│   └── html_renderer.py
-├── sync/
-│   ├── __init__.py
-│   ├── directory_exporter.py
-│   ├── directory_importer.py
-│   └── bidirectional.py
-├── history/                        # Phase 8
-│   ├── __init__.py
-│   ├── interfaces.py
-│   ├── models.py
-│   ├── git_backend.py
-│   ├── events.py
-│   └── queries.py
-└── services/
-    ├── __init__.py
-    └── space_service.py
-```
-
-### Test Files
-```
-tests/unit/spaces/
-tests/integration/spaces/
-tests/e2e/spaces/
-tests/fixtures/spaces.py
-```
-
---
-
-## Success Criteria
-
-1. ✅ Phase 0 complete: project reorganized with docs/PROJECT_STRUCTURE.md
-2. ✅ All phases complete with passing tests
-3. ✅ HTML rendering mode fully functional
-4. ✅ Directory mode with bidirectional sync working
-5. ✅ GraphQL API exposing all space operations
-6. ✅ CLI commands operational
-7. ✅ Events propagating correctly
-8. ✅ Cross-space transclusion resolving
-
---
-
-## Implementation Status: COMPLETE ✅
-
-**Completed:** February 8, 2026
-
-All 8 phases of the Information Space Service implementation are complete.
-
-### Final Statistics
-
-| Metric | Value |
-|--------|-------|
-| **Total Tests** | 421 passing |
-| **Implementation Time** | Phases 0-8 complete |
-| **Commits** | 8 feature commits |
-| **Lines of Code** | ~10,000+ (spaces module) |
-
-### Phase Completion Summary
-
-| Phase | Status | Tests | Key Deliverables |
-|-------|--------|-------|------------------|
-| 0-1 | ✅ Complete | 66 | Space models, SQLite repositories, SpaceService |
-| 2 | ✅ Complete | 19 | Event system with EventBus, typed events |
-| 3 | ✅ Complete | 47 | Persistent transclusion context, reference tracking |
-| 4 | ✅ Complete | 60 | HTML rendering with themes (github, dark, minimal, academic) |
-| 5 | ✅ Complete | 45 | Directory sync (export, import, bidirectional) |
-| 6 | ✅ Complete | 38 | GraphQL schema, CLI commands, resolvers |
-| 7 | ✅ Complete | 57 | Space references, variable/config inheritance, access control |
-| 8 | ✅ Complete | 43 | Git history tracking with event-driven commits |
-
-### Key Achievements
-
-**Architecture:**
- ✅ Clean layered architecture (models → repositories → services → API)
- ✅ Event-driven design enabling extensibility
- ✅ Interface-based abstractions (ISpaceRepository, IHistoryBackend, etc.)
- ✅ Composable space hierarchies with inheritance
- ✅ Plugin-ready architecture (SPACE_RENDERER, SPACE_SYNC types)
-
-**Features:**
- ✅ First-class Information Space abstraction
- ✅ Full lifecycle management (draft → active → archived)
- ✅ Persistent transclusion context with cross-space references
- ✅ Reference graph for dependency tracking
- ✅ HTML rendering with multiple themes and caching
- ✅ Bidirectional directory synchronization
- ✅ Conflict resolution strategies
- ✅ GraphQL API with queries and mutations
- ✅ CLI with 16 space management commands
- ✅ Variable inheritance through parent chains
- ✅ Config inheritance with source tracking
- ✅ Access control with roles and permissions
- ✅ Optional git-based version control
- ✅ Event-driven auto-commits
- ✅ History queries (log, diff, restore)
-
-**Quality:**
- ✅ Comprehensive test coverage (421 tests)
- ✅ All tests passing
- ✅ No regressions in existing functionality
- ✅ Clean git history with co-authored commits
-
-### Architecture Validation
-
-The git history feature (Phase 8) successfully validated the architecture's extensibility:
- Event bus enables loose coupling for optional features
- Directory sync provides canonical structure for git tracking
- Plugin system supports swappable backends
- Zero overhead when disabled
-
-### Files Created/Modified
-
-**Created (58 new files):**
- `markitect/spaces/` - Complete spaces module with 7 subpackages
- `tests/unit/spaces/` - 8 comprehensive test files
- Documentation and structure files
-
-**Key Modules:**
- `models.py` - Core domain models
- `repositories/` - SQLite implementations
- `services/` - Business logic orchestration
- `events/` - Event system
- `transclusion/` - Persistent context
- `rendering/` - HTML output with themes
- `sync/` - Directory synchronization
- `composability/` - Inheritance and references
- `history/` - Git version control
- `graphql/` - API schema and resolvers
- `cli.py` - Command-line interface
-
-### Next Steps (Optional)
-
-While all planned phases are complete, potential future enhancements:
-1. REST API alternative to GraphQL
-2. WebSocket subscriptions for real-time updates
-3. Additional rendering backends (PDF, EPUB)
-4. Cloud sync backends (S3, GitHub)
-5. Advanced search and indexing
-6. Collaborative editing features
-7. Space templates and scaffolding
-8. Performance optimizations for large spaces
-
---
-
-## Conclusion
-
-The Information Space Service has been successfully implemented according to the workplan. All success criteria have been met, and the architecture has proven extensible and maintainable. The implementation demonstrates:
-
- Clean separation of concerns
- Event-driven extensibility
- Comprehensive test coverage
- Production-ready quality
-
-**Status: Ready for production use** ✅