Module projects Architecture

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Architecture - Projects Module

Overview

The projects module composes lifecycle state management, immutable project snapshots, structural diff/merge behavior, template-driven project initialization, and bounded collaboration/audit support into a single project-domain subsystem.

Main Execution Planes

1. Lifecycle and versioning plane

• state transition validation and persistence
• snapshot creation/listing/restore and checksum/integrity behavior

2. Diff/template plane

• structural delta computation and merge conflict reporting
• template validation and project bootstrap behavior

3. Collaboration/observability plane

• permission-checked sharing and locking behavior
• bounded change feed, metrics, and in-memory audit trails

Core Contracts

Contract	Behavior
lifecycle contract	deterministic, validation-gated state transitions
versioning contract	immutable snapshot semantics with explicit restore behavior
diff contract	explicit delta and merge conflict surfaces
collaboration contract	permission-checked operations and bounded change feed behavior

Failure Semantics

• invalid transitions fail explicitly.
• missing or invalid snapshot payloads fail deterministically.
• permission and lock violations are surfaced as explicit errors.
• merge conflicts are returned explicitly for caller handling.

Sourcecode Verification (Module: projects/architecture)

• Verified files:
  • src/projects/project_lifecycle.cpp
  • src/projects/project_versioning.cpp
  • src/projects/project_diff.cpp
  • src/projects/project_template.cpp
  • src/projects/collaboration_manager.cpp
  • src/projects/in_memory_project_audit_log.cpp
• Verified architecture claims:
  • lifecycle/versioning + diff/template + collaboration/observability plane split
  • explicit failure boundaries for invalid transitions, snapshots, locks, and conflicts
  • module-local ownership of project-domain behavior surfaces

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Direct Downstream Consumers (modules that use this module)

Module	Via	Notes
document	include/projects/DocumentManager/document_manager.h	Deprecated document manager adapter bridges the legacy projects-scoped DocumentManager API (include/document/document_manager_deprecated.h)

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