arcrun — AI workflow execution engine (clean history)

Self-hosted 開源：WASM 零件 + recipe + cypher-executor，跑在你自己的 Cloudflare。

此為重建的乾淨歷史起點（移除曾誤 commit 的 GCP SA 金鑰，舊歷史保留在
richblack/arcrun 與本地 backup 分支）。含：
- acr init --self-hosted installer（建 KV/R2 + codeload 拉預編譯 wasm + wrangler deploy + seed recipe）
- recipe push 把關（資料外流提醒 + 打通檢查）
- 19 個正當零件預編譯 wasm（claude_api/km_writer/kbdb_upsert_block 排除：違反 DECISIONS §1）
- CLI / cypher-executor / registry / 完整 SDD

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.agents/specs/arcrun/frontend-redesign/design-source/SOURCE_README.md

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+# CODING AGENTS: READ THIS FIRST
+
+This is a **handoff bundle** from Claude Design (claude.ai/design).
+
+A user mocked up designs in HTML/CSS/JS using an AI design tool, then exported this bundle so a coding agent can implement the designs for real.
+
+## What you should do — IMPORTANT
+
+**Read the chat transcripts first.** There are 1 chat transcript(s) in `arcrun/chats/`. The transcripts show the full back-and-forth between the user and the design assistant — they tell you **what the user actually wants** and **where they landed** after iterating. Don't skip them. The final HTML files are the output, but the chat is where the intent lives.
+
+**Find the primary design file under `arcrun/project/` and read it top to bottom.** The chat transcripts will tell you which file the user was last iterating on. Then **follow its imports**: open every file it pulls in (shared components, CSS, scripts) so you understand how the pieces fit together before you start implementing.
+
+**If anything is ambiguous, ask the user to confirm before you start implementing.** It's much cheaper to clarify scope up front than to build the wrong thing.
+
+## About the design files
+
+The design medium is **HTML/CSS/JS** — these are prototypes, not production code. Your job is to **recreate them pixel-perfectly** in whatever technology makes sense for the target codebase (React, Vue, native, whatever fits). Match the visual output; don't copy the prototype's internal structure unless it happens to fit.
+
+**Don't render these files in a browser or take screenshots unless the user asks you to.** Everything you need — dimensions, colors, layout rules — is spelled out in the source. Read the HTML and CSS directly; a screenshot won't tell you anything they don't.
+
+## Bundle contents
+
+- `arcrun/README.md` — this file
+- `arcrun/chats/` — conversation transcripts (read these!)
+- `arcrun/project/` — the `arcrun` project files (HTML prototypes, assets, components)