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/glm-5-turbo.json

@@ -8,7 +8,6 @@
   "runs": {
     "mythos-craft": [
       {
-        "file": "mythos-craft.html",
         "note": {
           "zh": "在 ZCode 中以 GLM-5 Turbo（Thinking 思考配额）一次生成。原始 HTML 因脚本括号错误、缺少 Game 初始化和缺少收尾标签而无法进入；Codex 仅修复这些启动接线问题，未改动玩法或视觉设计。",
           "en": "Generated in one shot by GLM-5 Turbo (Thinking effort) inside ZCode. The original HTML could not enter the game because of script-brace errors, missing Game initialization, and missing closing tags; Codex only fixed those startup wiring issues, without changing gameplay or visual design."
@@ -25,7 +24,6 @@
       }
     ],
     "pelican-cycling": {
-      "file": "pelican-bike.svg",
       "note": {
         "zh": "在 ZCode 中以 GLM-5 Turbo（Thinking 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 GLM-5 Turbo (Thinking effort) inside ZCode; unmodified original SVG output."