v1.2.0

Added

• Three new ships: Serenity, Normandy, and the Planet Express Ship.
• Expanded ship menu -- now shows 8 slots in a 4×2 grid (compact screens: 2×4), replacing the old single-row 4-slot layout.
• Sleep-detection timer -- a setInterval now monitors Date.now() for jumps and invalidates the sprite cache on machine wake. This covers the remaining blind spot where neither visibilitychange nor window focus fires (tab already focused when the machine sleeps).

Changed

• Carrier expanded to accommodate the new ships.

Fixed

• Drone missile tracking -- missiles now re-compute heading toward the target's live position every frame. Previously the bearing was locked at fire time, causing drones to miss enemies that had moved.

Visual

• Enterprise bitmap extended; nacelle positions and impulse drive flare adjusted. Impulse drive now renders in fire colors (orange/red) instead of blue. Thanks to @andrewmsprague for the NCC-1701 impulse drive tips.
• Drone explosions tuned: 80→50 particles, smaller radii, 1300ms→900ms duration, tighter blast rings.
• dimColor opacity raised across all ships for better visibility when docked in the carrier menu.
• Gravity update arrow larger.
• Splash screen tagline minimum font size bumped from 11 to 12 px.

Infrastructure

• Docker base image switched from python:3.14-slim to python:3.14-alpine3.23, meaningfully reducing image size.
• PYTHONDONTWRITEBYTECODE=1 and PYTHONUNBUFFERED=1 added to the image environment.
• pip, setuptools, and wheel removed from the final image layer.
• Non-root user now created with -H (no home directory) and -s /sbin/nologin (no login shell).

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