docs: document weekly Cloudflare scrape workflow and update changelog

CHANGELOG.md

@@ -11,6 +11,22 @@ prefer updating to a tagged release over pulling raw `master` (see
 files a release touched; `python3 tools/check_upstream_updates.py` lists them with
 per-file diff commands.
 
+## [Unreleased]
+
+### Added
+
+- **Weekly scrape as a Cloudflare Workflow** (`apps/worker`) - a `weekly-scrape` Workflow
+  scheduled `0 13 * * MON` runs the `/scrape` → `/rank` → `/sync-twenty` pipeline
+  headlessly: freehire (API), the `jobs.db` snapshot imported into D1, LinkedIn and
+  Wellfound through Browser Rendering (the CLIs' own parsers, copied), intra-run and
+  Twenty-URL-map dedup, a conservative title gate, one Claude scoring call per posting
+  through the `jobyssey` AI Gateway (forced tool call matching the `/rank` entry shape,
+  prompt-cached rubric + profile bundled at deploy), then Companies → Opportunities at
+  `RANKED` → Fit Analysis notes → a weekly report note and the `Weekly job scrape`
+  task in Twenty. Manual trigger: `POST /run` with a bearer token. The interactive
+  `/scrape` Step 2 now also dedups against Twenty's Opportunity URL map so the two never
+  re-present each other's finds.
+
 ## [1.6.0] - 2026-08-19
 
 ### Added