fix(install): add --yes flag to npx so it doesn't hang waiting for prompt

Root cause: 'npx camoufox-js@0.11.0 fetch' on a fresh install prompts
'Ok to proceed? (y/N)' and pipes it through 'tail -5', hiding it. User
sees nothing happening while script waits for input.

Fix:
1. npx --yes — auto-confirms the install prompt, no more silent hang
2. Removed | tail -5 — full output visible so user sees progress bar
3. macOS cache path (~/Library/Caches/) vs Linux (~/.cache/) in verify step
4. Also checks version.json as fallback (binary can be named differently)

install.sh

@@ -195,13 +195,24 @@ install_camofox_browser() {
         npm install -g camoufox-browser@0.1.0 2>&1 | tail -3
 
         info "Downloading Camoufox browser binary (this may take a while, ~662MB)..."
-        npx camoufox-js@0.11.0 fetch 2>&1 | tail -5
+        info "Running: npx --yes camoufox-js@0.11.0 fetch"
+        npx --yes camoufox-js@0.11.0 fetch 2>&1
 
         # Verify the browser binary was actually downloaded
-        if ls ~/.cache/camoufox/camoufox 2>/dev/null; then
-            ok "Camoufox browser binary downloaded (~/.cache/camoufox/)"
+        # macOS: ~/Library/Caches/camoufox/  |  Linux: ~/.cache/camoufox/
+        local cache_dir
+        if [ "$(uname -s)" = "Darwin" ]; then
+            cache_dir="$HOME/Library/Caches/camoufox"
         else
-            warn "Browser binary not found at ~/.cache/camoufox/. May need manual 'npx camoufox-js@0.11.0 fetch'"
+            cache_dir="$HOME/.cache/camoufox"
+        fi
+
+        if [ -f "$cache_dir/camoufox" ]; then
+            ok "Camoufox browser binary downloaded ($cache_dir/)"
+        elif [ -f "$cache_dir/version.json" ]; then
+            ok "Camoufox browser cache found at $cache_dir/ (binary downloaded)"
+        else
+            warn "Browser binary not found at $cache_dir/. May need manual 'npx --yes camoufox-js@0.11.0 fetch'"
         fi
 
         ok "Camoufox browser npm package installed"