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/changes/archive/2026-05-19-tool-terminal/.openspec/.pi-map.index.md

@@ -0,0 +1,19 @@
+# openspec/changes/archive/2026-05-19-tool-terminal/.openspec (index)
+dir: openspec/changes/archive/2026-05-19-tool-terminal/.openspec
+
+## role
+Defines a versioned schema configuration for a tool-terminal component in the OpenSpec changes archive.
+## parent
+index: openspec/changes/archive/2026-05-19-tool-terminal/.pi-map.index.md
+map: openspec/changes/archive/2026-05-19-tool-terminal/.pi-map.md
+## children
+-
+## files
+- config.yaml
+## links
+index: openspec/changes/archive/2026-05-19-tool-terminal/.openspec/.pi-map.index.md
+map: openspec/changes/archive/2026-05-19-tool-terminal/.openspec/.pi-map.md
+## workflows
+-
+## dirty
+-

openspec/changes/archive/2026-05-19-tool-terminal/.openspec/.pi-map.md

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+# openspec/changes/archive/2026-05-19-tool-terminal/.openspec
+dir: openspec/changes/archive/2026-05-19-tool-terminal/.openspec
+
+index: openspec/changes/archive/2026-05-19-tool-terminal/.openspec/.pi-map.index.md
+
+## role
+Defines a versioned schema configuration for a tool-terminal component in the OpenSpec changes archive.
+## files
+- config.yaml | Defines a basic configuration file specifying a schema type and name for a tool-terminal component.
+## arch
+Simple declarative configuration using YAML with schema type and name key-value pairs, following a dated archival directory structure for change tracking.
+## tags
+config, defines, basic, configuration, specifying, schema, type, name
+## symbols
+-
+## workflows
+-
+## dirty
+-