feat: split canvas per release channel (alpha/beta/stable)

README.md

@@ -1,13 +1,18 @@
+# decord — canvas branch
 
 Auto-generated by `main`'s `update (hourly)` workflow (`src/update/tasks/colors.ts`). Do not edit manually.
 
-## Contents
+## Layout
+
+Colors are split per Discord release channel: `alpha/`, `beta/`, `stable/`. Each channel has the same contents:
 
 - `raw.json` — Discord's raw colors (`tokens/colors/generated/raw-color-definitions.tsx`)
 - `semantic.json` — Semantic colors (full, with `raw` + `opacity` per theme)
 - `semantic_simple.json` — Simplified semantic (`{semantic: {theme: hex}}`)
 - `version.txt`
 
+`version.txt` is written only after a successful run. A placeholder `0` signals "never processed" (forces the first run).
+
 ## `raw` / `semantic` for themers
 
 - `raw.json`: `{ "BLACK_100": "#...", ... }` ~200 keys
@@ -20,4 +25,4 @@ Use `semantic_simple.json` for quick theming, `semantic.json` + `raw.json` to re
 
 - Main: https://github.com/lvwmwm/decord
 - Data (code): https://github.com/lvwmwm/decord/tree/data
-- Workflow: `.github/workflows/update.yml`
+- Workflow: `.github/workflows/update.yml`

beta/version.txt

@@ -0,0 +1 @@
+0

stable/version.txt

@@ -0,0 +1 @@
+0