v2.1.8

Changes

• Defers FlareSolverr solving until an upstream Perplexity session is actually created, keeping MCP initialize fast.
• Caches the FlareSolverr solution for reuse during the process lifetime.
• Adds regression coverage for the lazy FlareSolverr bridge path.

Verification

• npm test
• npm run build
• MCP initialize and tools/list smoke check