feat(docs): move the site to prdcs.wiki on a Cloudflare Worker

Blume's cloudflare() adapter builds the docs as the prdcs-wiki Worker
(apps/docs/wrangler.jsonc: name, prdcs.wiki custom domain), and deploy.yml
ships it with wrangler instead of GitHub Pages. The SRS Worker's DOCS_URL /
DOCS_ORIGIN, release links and README badge follow the new domain.

apps/docs/.gitignore

@@ -1 +1,2 @@
 .blume-verify/
+.wrangler/

apps/docs/blume.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig } from "blume";
+import { cloudflare } from "blume/deploy";
 import type { StandardSchema } from "blume/core/standard-schema.ts";
 import { filesystem } from "blume/sources";
 import { APPENDIX } from "./appendix";
@@ -6,7 +7,7 @@ import { RECENCY, type Company } from "./companies";
 import redirects from "./redirects";
 
 // Blume's defaults (`inter`, `ibm-plex-mono`) are fetched from fonts.gstatic.com
-// on every build, which has timed out on the Pages runner and, fully offline,
+// on every build, which has timed out on the CI runner and, fully offline,
 // silently ships no fonts at all. The same two families from Fontsource, as
 // local files, keep the build network-free. Blume resolves `src` from this
 // directory; the workspace links these packages under ./node_modules.
@@ -92,9 +93,14 @@ export default defineConfig({
   title: "prdlk",
   description: "Documentation for my LeetCode solutions",
   logo: "./public/logo.svg",
-  deployment: {
-    site: "https://lc.prd.lk",
-  },
+  // A Cloudflare Workers server build (`@astrojs/cloudflare`), deployed by
+  // `wrangler deploy` with apps/docs/wrangler.jsonc (Worker name, the
+  // prdcs.wiki custom domain). Every page still prerenders; the Worker adds
+  // real HTTP redirects and `Accept: text/markdown` negotiation. Workers
+  // exposes no site URL to detect, so `site` is required.
+  deployment: cloudflare({
+    site: "https://prdcs.wiki",
+  }),
   github: {
     owner: "prdlk",
     repo: "leetcode",
@@ -127,10 +133,10 @@ export default defineConfig({
     structuredData: true,
     x: { handle: "@prdlk" },
   },
-  // Blume's own assistant route is server-rendered (it reads the provider key
-  // per request), which a static Pages build cannot ship. The SRS Worker
-  // answers instead (apps/api/src/ask.ts: OpenRouter, grounded on this site's
-  // llms-full.txt, which `agents.llmsTxt` publishes).
+  // Blume's own assistant route reads a provider key per request; the SRS
+  // Worker already holds that key and answers instead (apps/api/src/ask.ts:
+  // OpenRouter, grounded on this site's llms-full.txt, which `agents.llmsTxt`
+  // publishes), so this Worker carries no secrets.
   ai: {
     assistant: {
       enabled: true,

apps/docs/package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "dev": "blume dev",
     "build": "blume build",
+    "deploy": "wrangler deploy",
     "doctor": "blume doctor"
   },
   "dependencies": {
@@ -19,10 +20,12 @@
     "tailwind-merge": "^3.7.0"
   },
   "devDependencies": {
+    "@astrojs/cloudflare": "^14.4.4",
     "@fontsource-variable/inter": "^5.3.0",
     "@fontsource/ibm-plex-mono": "^5.3.0",
     "@types/d3-hierarchy": "^3.1.7",
     "@types/react": "^19.3.0",
-    "@types/react-dom": "^19.3.0"
+    "@types/react-dom": "^19.3.0",
+    "wrangler": "^4.125.0"
   }
 }

apps/docs/redirects.ts

@@ -1,5 +1,5 @@
 // Generated by `bun run sync` (apps/cli/sync.ts) — do not edit.
-// `/leetcode/<num>` → that problem's page; exact paths, base added by Blume.
+// `/<num>` → that problem's page; exact paths, base added by Blume.
 export default [
   { from: "/1", to: "/hash-table/two-sum" },
   { from: "/2", to: "/hybrid-structures/add-two-numbers" },

apps/docs/wrangler.jsonc

@@ -0,0 +1,22 @@
+// Docs Worker — the Blume site, built by `blume build` with the `cloudflare()`
+// deploy adapter (blume.config.ts) and shipped by `wrangler deploy` from this
+// directory. Blume's build merges this file into dist/server/wrangler.json
+// (main, assets, the text/markdown negotiation wrapper) and writes the
+// .wrangler/deploy/ redirect wrangler follows, so only what Blume cannot
+// know lives here: the Worker's name and its domain.
+{
+  "$schema": "node_modules/wrangler/config-schema.json",
+  "name": "prdcs-wiki",
+  "compatibility_date": "2026-08-24",
+  "observability": { "enabled": true },
+
+  // prdcs.wiki is a zone on the same Cloudflare account; `custom_domain`
+  // makes wrangler create the DNS record and certificate on deploy.
+  "routes": [{ "pattern": "prdcs.wiki", "custom_domain": true }],
+  "workers_dev": false,
+
+  // Blume writes every page as <route>/index.html and links it without the
+  // slash; Cloudflare's default would answer `/x` with a 307 to `/x/` on any
+  // path the static layer serves ahead of the Worker.
+  "assets": { "html_handling": "drop-trailing-slash" }
+}