docs: point docs at the production domain (ENG-169)

AGENTS.md

@@ -18,10 +18,11 @@ Operational context for this repo. Commands, scripts, and folder layout live in
 - Interface language comes from the route, not from cookies: PT lives at the root in `app/(pt)` (no prefix, no `/pt` route) and EN lives under `/en` in `app/(en)/en`. Each group has its own root layout rendering `components/layout/site-shell.tsx` with its `lang`. No `Accept-Language` detection or automatic redirects.
 - `/alunos` is the interim certificate check for certificates already issued. It stays PT-only, `noindex`, outside `localizedPages` (no hreflang), and out of any sitemap. When the Trilha certificate lookup exists, replace this route with a redirect to that lookup.
 - Analytics via PostHog in Production only; event contract in [`docs/analytics.md`](docs/analytics.md) — document new events there first.
+- Production domain is `https://danieldcs.com` (apex), the same value as `siteUrl` in `lib/site.ts`. `www` and `danieldcs-com.vercel.app` redirect with 308 on Vercel, not in the code.
 
 ## Out of V1
 
-Do not add these unless the current ticket asks for them: custom domain `danieldcs.com`, CMS, required PR reviews, CODEOWNERS.
+Do not add these unless the current ticket asks for them: CMS, required PR reviews, CODEOWNERS.
 
 ## Workflow
 

README.md

@@ -1,6 +1,6 @@
 # danieldcs.com
 
-Personal website of Daniel Castro. Static-first Next.js app, hosted on Vercel.
+Personal website of Daniel Castro, live at https://danieldcs.com. Static-first Next.js app, hosted on Vercel.
 
 ## Stack
 

docs/analytics.md

@@ -92,7 +92,7 @@ Document name and properties here first. Stable `snake_case`; identifiers only;
 
 ## Operations
 
-Configuration outside this repo that the code and the privacy policy depend on.
+Configuration outside this repo that the code and the privacy policy depend on. Operational details (channels, accounts) stay out of this repository.
 
 **PostHog** — project `Daniel's Blog` (US Cloud)
 
@@ -106,9 +106,8 @@ Configuration outside this repo that the code and the privacy policy depend on.
 
 - `NEXT_PUBLIC_POSTHOG_KEY` is set for **Production only**; preview and development send nothing.
 - Changing the key requires a production redeploy (`NEXT_PUBLIC_*` is inlined at build time).
-- Failed deployment notifications: `<e-mail ou canal>`.
+- Failed deployment notifications are enabled.
 
 **Uptime** — Better Stack
 
-- Monitors `<URL de produção>` and `<URL>/en`; alerts go to Slack (`<#canal>`).
-- Switch the monitored URLs to `danieldcs.com` in the Migration & Launch milestone.
+- Monitors `https://danieldcs.com`; alerts go to Slack.

lib/site.ts

@@ -1,6 +1,6 @@
 export const siteName = 'danieldcs.com'
 
-/** Canonical origin of the site, including in previews before the launch. */
+/** Canonical origin of the site. Previews use it too, so canonical never points at a preview URL. */
 export const siteUrl = 'https://danieldcs.com'
 
 export function absoluteSiteUrl(pathname: string): string {