Initial TrueGrowth source import

openspec/changes/archive/2026-04-29-add-prompt-history-tool/specs/toolbox/spec.md

@@ -0,0 +1,17 @@
+## ADDED Requirements
+
+### Requirement: Prompt History Toolbox Tool
+The system SHALL provide a built-in toolbox tool named "提示词历史" that opens as an internal React tool.
+
+#### Scenario: User opens prompt history from toolbox
+- **WHEN** the user opens the toolbox
+- **THEN** the "提示词历史" tool is available as a content tool
+- **AND** opening it shows local prompt history records derived from generation tasks
+
+### Requirement: Prompt History Tool Uses Lightweight Records
+The prompt history tool SHALL read only lightweight task summaries for list rendering and result previews.
+
+#### Scenario: Large media tasks exist
+- **WHEN** prompt history records are loaded
+- **THEN** the list data excludes large uploaded media, analysis payloads, tool call arrays, and full generated media blobs
+- **AND** media previews reference existing URLs or thumbnails