Add DB migration for chat tables

Co-Authored-By: Nathan Sobo <nathan@zed.dev>

script/sqlx

@@ -5,6 +5,8 @@ set -e
 # Install sqlx-cli if needed
 [[ "$(sqlx --version)" == "sqlx-cli 0.5.5" ]] || cargo install sqlx-cli --version 0.5.5
 
+cd server
+
 # Export contents of .env.toml
 eval "$(cargo run --bin dotenv)"