Add 10-minute timeout to test commands and disable e2e in merge pipeline

Test commands in run_project_tests now use wait-timeout to enforce a
600-second ceiling, preventing hung processes (e.g. Playwright with no
server) from blocking the merge pipeline indefinitely. Also disables
e2e tests in script/test until the merge workspace can run them safely.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/Cargo.toml

@@ -33,6 +33,7 @@ pulldown-cmark = { workspace = true }
 
 # Force bundled SQLite so static musl builds don't need a system libsqlite3
 libsqlite3-sys = { version = "0.35.0", features = ["bundled"] }
+wait-timeout = "0.2.1"
 
 [dev-dependencies]
 tempfile = { workspace = true }