feat: mastra no storage

[Kitenite]

Description

Related Issues

Type of Change

• Bug fix
• New feature
• Documentation update
• Release
• Refactor
• Other (please describe):

Testing

Screenshots (if applicable)

Additional Notes

---

Important

Integrates Mastra for memory management, refines message handling and conversion, and updates models and tests in AI and DB packages.

• Behavior:
  • Integrates Mastra for memory and storage management in ai and db packages.
  • Updates initModel() in providers.ts to handle OPENROUTER_MODELS.CLAUDE_4_SONNET with specific provider options.
  • Refines getHydratedUserMessage() in provider.ts to handle message context and attachments.
  • Implements convertToStreamMessages() in stream/index.ts for converting ChatMessage to CoreMessage.
  • Adds countTokensWithRoles() in tokens/index.ts for token counting in messages.
• Models:
  • Updates ChatMessage and ChatConversation interfaces in models to include metadata and context.
  • Refactors toMessage() and fromMessage() in dto/message.ts for message conversion between DB and application models.
  • Introduces MessageSnapshot type in snapshot.ts for handling message snapshots.
• Testing:
  • Adds tests for prompt, stream, and tokens functionalities in ai package.
  • Validates message conversion and token counting logic in convert.test.ts and tokens.test.ts.

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[ellipsis-dev]

The call to createAndAttachCommitToUserMessage is not awaited. While this matches the previous promise‐chain approach, consider awaiting it or adding error handling to prevent silent failures.

Suggested change

	this.createAndAttachCommitToUserMessage(userMessage.id, content);
	await this.createAndAttachCommitToUserMessage(userMessage.id, content);