v0.5.1

Changed

• Hard-capped embedded remote exports at 1.45 MB (1,450,000 bytes); ARTIFACT_EMBED_MAX_BYTES may lower but cannot raise the ceiling.
• Updated the MCP tool description and project documentation to expose the 1.45 MB limit and file_too_large behavior explicitly.
• Set the operational embedded-resource ceiling to 1.45 MB to keep a conservative margin below the platform-sensitive range observed during ChatGPT ingestion/materialization.
• Updated boundary tests so exactly 1,450,000 bytes succeeds and 1,450,001 bytes is rejected, even when configuration attempts to request a higher value.