chore: patch project maps after stale backend test cleanup

Regenerate .pi-map*.md artifacts for source changes in:
- apps/api/src/api/tool/tool_types_validation.py
- apps/api/src/schemas/tool/tool_type.py
- apps/api/tests/integration/test_tool_types_api_extended.py
- and all affected test files from backend-frontend refactoring cleanup

.stoneforge/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: .stoneforge
 
 ## role
-Hidden system directory storing runtime state, configuration, and version-control metadata for the Stoneforge application.
+Internal configuration and state tracking directory for the Stoneforge application
 ## parent
 index: ./.pi-map.index.md
 map: ./.pi-map.md

.stoneforge/.pi-map.md

@@ -4,13 +4,13 @@ dir: .stoneforge
 index: .stoneforge/.pi-map.index.md
 
 ## role
-Hidden system directory storing runtime state, configuration, and version-control metadata for the Stoneforge application.
+Internal configuration and state tracking directory for the Stoneforge application
 ## files
 - .dashboard-opened | Stores timestamp and identifier data for tracking when a dashboard was opened
 - .gitignore | Specifies files and patterns for Git to ignore in version control
 - config.yaml | Configuration file for the Stoneforge application defining database, sync, playbook, identity, merge, workflow, and agent settings.
 ## arch
-Simple flat-file storage with YAML-based configuration, dotfile-based state tracking, and standard Git ignore patterns.
+Simple dot-directory pattern storing metadata (.dashboard-opened), version control exclusions (.gitignore), and hierarchical YAML configuration (config.yaml) with domain-separated settings
 ## tags
 config, stores, timestamp, identifier, data, tracking, dashboard, was
 ## symbols

.stoneforge/sync/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: .stoneforge/sync
 
 ## role
-Distributed task coordination and ephemeral worker agent management for a multi-agent execution system.
+Persists distributed task execution state by storing dependency graphs and ephemeral worker agent records for a collaborative workflow system.
 ## parent
 index: .stoneforge/.pi-map.index.md
 map: .stoneforge/.pi-map.md

.stoneforge/sync/.pi-map.md

@@ -4,12 +4,12 @@ dir: .stoneforge/sync
 index: .stoneforge/sync/.pi-map.index.md
 
 ## role
-Distributed task coordination and ephemeral worker agent management for a multi-agent execution system.
+Persists distributed task execution state by storing dependency graphs and ephemeral worker agent records for a collaborative workflow system.
 ## files
 - dependencies.jsonl | Stores a sequence of dependency relationships between entities in JSON Lines format, tracking parent-child, blocking, and reply relationships with timestamps and creators.
 - elements.jsonl | Stores JSONL records of ephemeral worker agents with their session history, worktree assignments, and lifecycle metadata for a distributed task execution system.
 ## arch
-Event-sourced JSONL append-only logs with entity-relationship graph tracking, session-based worker lifecycle management, and decentralized worktree assignment.
+Event-sourced JSONL append-only logs with entity-relationship modeling (parent-child, blocking, reply) and session-based worker lifecycle tracking.
 ## tags
 stores, relationships, dependencies, elements, sequence, dependency, entities, json
 ## symbols