chore: 更新项目文档与忽略规则，移除旧镜像归档跟踪

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

.gitignore

@@ -8,6 +8,7 @@ instance/
 .pytest_cache/
 .mypy_cache/
 user_input/
+# Note: user_input/广寒计划/Timeline.md is intentionally tracked (mission timeline source)
 
 # Temp files
 ~$*
@@ -20,19 +21,27 @@ scripts/update_vulture_wiki.py
 # Reference docs & reports
 docs/
 
-# Tests (E2E/screenshot-based)
-tests/
+# Local E2E tests remain ignored; keep new regression coverage trackable.
+tests/*
+!tests/test_first_stage_fixes.py
 
 # Demo screenshots
 demo/test_screenshots/
 
-# Playwright output and logs
-output/playwright/
+# Generated output: deployment bundles, screenshot caches, Playwright logs
+output/
 .playwright-cli/
 .superpowers/
 
 # KSP screenshots and upload cache
 data/KSP/
 
+# Docker image archives (rebuilt per release; deploy docs are the source of truth)
+docker_image/*.tar
+docker_image/*.tar.gz
+
+# Verification screenshots
+artifacts/
+
 # Misc
 test1