Fix systemd service to use uv with full path

Updated service to use uv run with absolute path to avoid
PATH issues in systemd environment.

Service file changes:
- ExecStart: Uses absolute path to uv (/home/berwn/.local/bin/uv)
- Runs: uv run --no-project python rotary_phone_web.py
- This ensures uv manages dependencies correctly

Install script improvements:
- Auto-detects uv location with 'which uv'
- Falls back to $HOME/.local/bin/uv if not in PATH
- Validates uv exists before proceeding
- Substitutes actual uv path into service file
- Shows detected uv path in output

This fixes:
  ModuleNotFoundError: No module named 'waitress'

Now uv properly manages the virtual environment and
dependencies are available to the service.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

install_service.sh

@@ -64,6 +64,19 @@ make sync
 echo -e "${GREEN}✓ Dependencies installed${NC}"
 echo ""
 
+# Find uv location
+UV_PATH=$(which uv)
+if [ -z "$UV_PATH" ]; then
+    UV_PATH="$HOME/.local/bin/uv"
+    if [ ! -f "$UV_PATH" ]; then
+        echo -e "${RED}ERROR: Cannot find uv executable${NC}"
+        echo "Checked: $(which uv), $HOME/.local/bin/uv"
+        exit 1
+    fi
+fi
+
+echo -e "${GREEN}✓ Found uv at: $UV_PATH${NC}"
+
 # Update the service file with the correct path
 echo "Configuring service file..."
 TEMP_SERVICE="/tmp/wedding-phone.service"
@@ -74,11 +87,13 @@ cat "$SERVICE_FILE" | \
     sed "s|User=berwn|User=$CURRENT_USER|g" | \
     sed "s|Group=berwn|Group=$CURRENT_USER|g" | \
     sed "s|/home/berwn/wedding-phone|$SCRIPT_DIR|g" | \
+    sed "s|/home/berwn/.local/bin/uv|$UV_PATH|g" | \
     sed "s|/home/berwn/.local/bin|$USER_HOME/.local/bin|g" \
     > "$TEMP_SERVICE"
 
 echo -e "${GREEN}✓ Service file configured for user: $CURRENT_USER${NC}"
 echo -e "${GREEN}✓ Working directory: $SCRIPT_DIR${NC}"
+echo -e "${GREEN}✓ UV path: $UV_PATH${NC}"
 echo ""
 
 # Install the service

wedding-phone.service

@@ -9,7 +9,7 @@ User=berwn
 Group=berwn
 WorkingDirectory=/home/berwn/wedding-phone
 Environment="PATH=/home/berwn/.local/bin:/usr/local/bin:/usr/bin:/bin"
-ExecStart=/usr/bin/python3 rotary_phone_web.py
+ExecStart=/home/berwn/.local/bin/uv run --no-project python rotary_phone_web.py
 Restart=always
 RestartSec=10