fix(e2e): consolidate specs into single file and fix WebDriver click issues

Tauri creates one app session per spec file; multiple files caused
invalid session id on subsequent specs. WebDriver clicks on Svelte 5
components inside scrollable panels dont trigger onclick handlers
via WebKit2GTK/tauri-driver - use browser.execute() JS clicks.
Also removed tauri-plugin-log (redundant with telemetry::init()).

v2/src-tauri/Cargo.toml

@@ -22,7 +22,6 @@ serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 log = "0.4"
 tauri = { version = "2.10.3", features = [] }
-tauri-plugin-log = "2"
 rusqlite = { version = "0.31", features = ["bundled"] }
 dirs = "5"
 notify = { version = "6", features = ["macos_fsevent"] }