chore: track all project map and index files

Add generated .pi-map.md and .pi-map.index.md files across the repository
so the project navigation maps are shared and versioned. These artifacts
are maintained by project_map_init/patch/validate and must be kept in
sync with source edits.

Note: .cache/ remains ignored (added in previous commit).

openspec/specs/user-config/.pi-map.index.md

@@ -0,0 +1,19 @@
+# openspec/specs/user-config (index)
+dir: openspec/specs/user-config
+
+## role
+Defines data models and API contracts for a user-configurable preferences system with JSONB storage and theme integration.
+## parent
+index: openspec/specs/.pi-map.index.md
+map: openspec/specs/.pi-map.md
+## children
+-
+## files
+- spec.md
+## links
+index: openspec/specs/user-config/.pi-map.index.md
+map: openspec/specs/user-config/.pi-map.md
+## workflows
+-
+## dirty
+-

openspec/specs/user-config/.pi-map.md

@@ -0,0 +1,19 @@
+# openspec/specs/user-config
+dir: openspec/specs/user-config
+
+index: openspec/specs/user-config/.pi-map.index.md
+
+## role
+Defines data models and API contracts for a user-configurable preferences system with JSONB storage and theme integration.
+## files
+- spec.md | Defines specifications for a user configuration system that stores JSONB key-value preferences, supports specific config keys, and integrates with frontend theme application. | dep: UserConfig, User, auth-oauth, pytest, mypy, ruff, npm
+## arch
+Specification-driven architecture using markdown-based API documentation with JSONB schema definitions for flexible key-value storage.
+## tags
+user, spec, defines, specifications, configuration, system, stores, jsonb
+## symbols
+-
+## workflows
+-
+## dirty
+-