[April 15, 2026] fix snowflake connection pool stability and request logging

v0.41.6

Fix Snowflake Connection Pool Stability

• Release Snowflake connections before streaming responses on v1 property endpoints to reduce idle connection hold time.
• Increase default pool connection timeout from 10s to 60s to match actual query durations.

Fix Request Logging

• Add /openapi.json to middleware excluded paths.