2568c02b51
* fix(core): strip quotes from MCP server header keys and values Users pasting JSON-formatted env vars into MCP server config end up with quoted header names like `"CONTEXT7_API_KEY":` which causes httpx.LocalProtocolError. Sanitize keys (strip surrounding quotes and trailing colons) and values (strip surrounding quotes) in resolve_custom_headers, resolve_environment_variables for HTTP configs, and stdio env dicts. Datadog: https://us5.datadoghq.com/error-tracking/issue/4a2f4af6-f2d8-11f0-930c-da7ad0900000 🤖 Generated with [Letta Code](https://letta.com) Co-Authored-By: Letta <noreply@letta.com> * fix: revert stdio env sanitization to pass-through The stdio path doesn't need header/env sanitization - that's only relevant for SSE/streamable HTTP servers with auth headers. 🐾 Generated with [Letta Code](https://letta.com) Co-Authored-By: Letta <noreply@letta.com> --------- Co-authored-by: Letta <noreply@letta.com>