PGLite's embedded WASM engine crashes on macOS 26.x (Tahoe) on Apple
Silicon during engine initialization. This adds:
- A Troubleshooting section in docs/INSTALL.md with step-by-step
instructions for using native Homebrew PostgreSQL 17 + pgvector
as a workaround
- A callout in README.md's Troubleshooting section pointing users
to the detailed setup guide
Tested on macOS 26.5 (arm64), Bun 1.3.14, gbrain 0.41.29.0,
PostgreSQL 17.10 (Homebrew), pgvector 0.8.0. All 102 schema
migrations pass. gbrain doctor green.
Co-authored-by: Saurav Roy <roysaurav@users.noreply.github.com>
