v2.6.5 fix(game): improve HireRPG English font

[realRoc]

Summary

Game UX

• Keeps the HireRPG title CTA visible in the first viewport on desktop and mobile.
• Improves mobile map/battle layout so HUD, backpack/codex controls, battle explanations, and continue actions do not fight for the same fixed space.
• Adds held keyboard/touch movement while keeping keyboard-style D-pad activation one-shot for assistive input.
• Scrolls game transitions back to the top so start, battle, game-over, and map returns do not land mid-page.

English font

• Replaces the English game body font with Pixelify Sans while keeping Press Start 2P for the title face.
• Keeps English first load from injecting the heavy Zpix font, while restoring Zpix injection for Chinese first paint.

English mirror assets

• Teaches the English mirror generator to rewrite favicon.svg to ../favicon.svg.
• Adds npm run check:en-assets to guard /en/ root-asset links.

Version/tag note

• The live pre-fix state was tagged and pushed as v2.6.4 before fixes, per request.
• This repo has no VERSION or CHANGELOG.md; release history is tag-based, so this PR does not introduce a new version file.

Test Coverage

CODE PATHS                                      USER FLOWS
[+] docs/game.html                              [+] English HireRPG load
  ├── [★★★ TESTED] EN font stack                  ├── [★★★ TESTED] Pixelify body font via /browse
  ├── [★★★ TESTED] zh Zpix first paint            ├── [★★★ TESTED] English does not inject Zpix
  ├── [★★★ TESTED] D-pad keyboard click           ├── [★★★ TESTED] Keyboard click leaves heldDir null
  └── [★★ TESTED] responsive title/battle         └── [★★ TESTED] Mobile start/map/battle reveal flow

[+] scripts/build-en.mjs                         [+] English mirror pages
  └── [★★★ TESTED] root asset rewrite             └── [★★★ TESTED] favicon resolves to ../favicon.svg

COVERAGE: 7/7 paths tested (100%)
Tests: 0 formal test files -> 0 (+1 Node regression check script)

Pre-Landing Review

• Inline review: no remaining issues.
• Codex adversarial initially found D-pad held-state and zh Zpix first-paint issues; both were fixed.
• Codex branch review against origin/main: no discrete, actionable regressions found.

Design Review

Design Review (lite): no issues found. Browser verification covered desktop English first viewport, mobile English first viewport, map entry, and battle reveal/continue layout.

Eval Results

No prompt-related files changed; evals skipped.

Plan Completion

No current plan file detected for this HireRPG game/font ship. A stale English-mirror plan was found locally but did not match this branch's primary work.

Verification Results

• npm run build:en
• npm run check:failsafe
• npm run check:en-assets
• git diff --check
• /browse desktop English game: Pixelify body font, title CTA visible, no console errors
• /browse mobile English game: Pixelify body font, map entry, D-pad keyboard click leaves heldDir null, no console errors
• /browse Chinese game: Zpix injected on first paint, no console errors

Test plan

• Static English mirror builds successfully
• Reveal failsafe remains intact
• English mirror root assets resolve from the site root
• Desktop/mobile HireRPG smoke flow passes

Generated with Codex.

[realRoc]

🤖 由 Codex 自动生成

Blocker / 必须修正

• docs/game.html:1425 / docs/game.html:1433：onKeyUp 在 G.screen !== 'map' 时直接返回，导致按住方向键撞进怪物进入 battle 后，用户松开键不会清掉 G.heldDir。之后从 battle 回到地图时旧方向仍保留，下一次任意移动完成后 updateMap 会继续按旧方向自动 tryStep，出现松手后仍连续移动的问题。建议在离开 map / 进入 battle 前清空 G.heldDir，或让 keyup 即使不在 map 屏也能清理对应 held direction。

建议

• 可在 startBattle()、backToMap() 或通用 screen transition 里集中重置移动输入状态，并补一条回归：按住方向键触发 battle，battle 中松开，返回地图后不应继续沿旧方向移动。

结论：❌ 暂不可合并（存在 blocker）

[realRoc]

🤖 由 Codex 自动生成

建议

• 建议把 docs/game.html 的 held movement 行为补进自动化回归：覆盖 pointer hold 连续移动、键盘 repeat 连续移动、以及辅助输入触发的 click（event.detail === 0）只走一步，避免后续调整 D-pad 事件绑定时重新引入重复移动或无法停止的问题。

结论：✅ 可以合并