Initial TrueGrowth source import

openspec/changes/archive/2026-04-29-add-ai-input-text-generation-mode/specs/ai-input-generation/spec.md

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+## ADDED Requirements
+
+### Requirement: AI Input Bar SHALL Distinguish Agent And Text Generation
+
+The system SHALL expose `agent` and `text` as separate generation types in the AI input bar.
+
+#### Scenario: User selects text generation
+- **WHEN** the user switches the generation type to `text`
+- **THEN** the AI input bar SHALL show text models
+- **AND** SHALL hide Skill selection
+- **AND** SHALL treat the request as direct text generation
+
+#### Scenario: User selects agent generation
+- **WHEN** the user switches the generation type to `agent`
+- **THEN** the AI input bar SHALL show Skill selection
+- **AND** SHALL route the request through the existing Agent analysis flow
+
+### Requirement: Text Generation SHALL Insert Results Into Canvas
+
+The system SHALL insert direct text generation results into the canvas after the text model returns content.
+
+#### Scenario: Text model returns markdown-like content
+- **WHEN** a direct text generation request completes
+- **THEN** the system SHALL insert the text result through the existing canvas insertion flow
+- **AND** MAY parse markdown cards before falling back to plain text insertion
+
+### Requirement: Text Generation SHALL Support Scoped Model Parameters
+
+The system SHALL persist text-generation model parameters independently from agent mode.
+
+#### Scenario: User switches between text models
+- **WHEN** the user changes text models in direct text mode
+- **THEN** the system SHALL restore the last compatible parameters for the selected text model
+- **AND** SHALL NOT reuse agent-only state such as selected Skill