feat(viewer): deploy to Cloudflare Workers; add graphs companion site#246
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Migrate the viewer from Cloudflare Pages to Cloudflare Workers (Static Assets) and add a second build flavor for a graphs.pi-base.org companion, selected at build time via VITE_SITE. - Bump @sveltejs/adapter-cloudflare 3 -> 7 (one adapter handles both Pages and Workers; adapter-cloudflare-workers is deprecated); add wrangler 4 - Add packages/viewer/wrangler.jsonc with topology/graphs named envs - Add src/site.ts (VITE_SITE flavor) and render the nav brand from it - Update bin/build to read WORKERS_CI_* (CF_PAGES_*/git fallback) - Add cf:deploy:* / cf:preview:* scripts for Workers Builds - Document the Workers Builds CI setup in doc/deployment.md The existing Pages deploy is unaffected: Pages sets CF_PAGES=1, which the adapter checks first to keep emitting Pages output.
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…opology - bin/build: only `npm install -g pnpm` when pnpm is missing. Workers Builds already provides pnpm (via .tool-versions), so the unconditional global install errored with EEXIST and reinstalled deps redundantly. - wrangler.jsonc: enable observability for the topology env so the production site's Worker Logs persist (queryable in the dashboard / API).
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What
Migrates the viewer deployment from Cloudflare Pages → Cloudflare Workers
(Static Assets), and adds a second build flavor for a
graphs.pi-base.orgcompanion site. Both Workers are built from this one repo, selected at build
time by a
VITE_SITEflag.Already deployed and verified on
*.workers.dev:pi-base-topology→ https://pi-base-topology.fragrant-boat-7068.workers.devpi-base-graphs→ https://pi-base-graphs.fragrant-boat-7068.workers.dev (brand label "π-Base (graphs)")Changes
@sveltejs/adapter-cloudflare3 → 7 (one adapter now handles both Pagesand Workers;
adapter-cloudflare-workersis deprecated), addwrangler4.packages/viewer/wrangler.jsonc: Workers Static Assets config withtopology/graphsnamed environments (→pi-base-topology/pi-base-graphs).src/site.ts:VITE_SITEflavor;Nav.svelterenders the brand from it.bin/build: readWORKERS_CI_*(Workers Builds) withCF_PAGES_*/git fallback.cf:deploy:*/cf:preview:*npm scripts for Workers Builds.doc/deployment.md: document the Workers Builds CI setup.Safe alongside the existing Pages site
The legacy Pages deploy keeps working with this branch merged. Cloudflare sets
CF_PAGES=1during Pages builds, and@sveltejs/adapter-cloudflarechecks thatfirst (
is_building_for_cloudflare_pages), so a Pages build still emits Pagesoutput (
_routes.json, no.assetsignore) even withwrangler.jsoncpresent —verified locally by building both ways. v7 is the officially supported Pages
adapter, so the 3 → 7 bump is supported on the Pages path too.
Pre-merge check: pushing this branch generates a Pages preview deployment
— confirm that preview renders before merging to validate the v7 Pages output on
the real project.
Out of scope (follow-up)
Custom domains (
graphs.pi-base.org; cuttingtopology.pi-base.orgover fromPages), full branding parametrization, the real graphs data bundle, and
cypress/e2e preview-URL updates. Pages can be decommissioned after the cutover.
Test plan
pnpm --filter core buildthenVITE_SITE=topology|graphs pnpm --filter viewer buildpnpm --filter viewer exec wrangler dev→/200, assets served, brand differspnpm --filter viewer run test(61 pass)