Normalize artifact filenames and register new runs (#17)

Rename all output artifacts to their canonical case-id names
(mythos-craft.html / pelican-cycling.svg / skeleton-watch.html, with
-2 suffixes for variants) and drop the now-redundant "file" overrides
from the corresponding models/*.json runs.

Register new Claude Code runs for Opus 4.6 and 4.7 (new model JSONs),
add the GPT-5.5 Pro skeleton-watch run, and regenerate the README
registry tables. Remove stray .DS_Store files from outputs/.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

models/claude-haiku-4-5-cc.json

@@ -7,7 +7,6 @@
   "order": 19.5,
   "runs": {
     "mythos-craft": {
-      "file": "minecraft-clone.html",
       "note": {
         "zh": "在 Claude Code 中以 Claude Haiku 4.5（Default 思考配额）一次生成。原始 HTML 因 Three.js 异步加载、渲染 canvas 绑定和 world 变量接线问题无法正常打开；Codex 仅修复启动接线以让原始实现可运行，未改动玩法、地形、视觉设计或控制逻辑。",
         "en": "Generated in one shot by Claude Haiku 4.5 (Default effort) inside Claude Code. The original HTML could not open correctly due to Three.js async loading, render-canvas binding, and world variable wiring issues; Codex only fixed the startup wiring so the original implementation can run, without changing gameplay, terrain, visual design, or control logic."
@@ -15,7 +14,6 @@
       "contributor": "Nagi-ovo"
     },
     "pelican-cycling": {
-      "file": "pelican-bike.svg",
       "note": {
         "zh": "在 Claude Code 中以 Claude Haiku 4.5（Default 思考配额）一次生成；本页为未经修改的原始 SVG 产出。",
         "en": "Generated in one shot by Claude Haiku 4.5 (Default effort) inside Claude Code; unmodified original SVG output."