feat(hosting): add /odoo-black-friday/ and /odoo-hosting-offers/ pages

Page A /odoo-black-friday/ owns "odoo black friday": hero, one On the Rise
box with a CSS-only reveal (native <details>) of the HOST27 offer, "what the
code does", FAQ. Page B /odoo-hosting-offers/ is the evergreen hub owning
"odoo hosting offers/deals/discount", with a date-scoped Black Friday block
(BF-BLOCK-START/END) linking to Page A. Both carry the copy's title/meta/H1,
@graph JSON-LD (Organization, WebPage, BreadcrumbList, Product+Offer, FAQPage).
sitemap.xml and llms.txt updated. Copy source: copywriter 2026-10-30.

llms.txt

@@ -32,6 +32,8 @@
 
 - [Odoo Community upgrade](https://odoo4projects.com/odoo-community-upgrade.html): what an upgrade changes, the published step-by-step process, the real commands for a developer (Odoo's upgrade platform and the OCA OpenUpgrade route) and how we migrate a database onto our servers. No price and no duration are published for the migration service; it starts with a support ticket.
 - [Odoo hosting in Australia — Sydney](https://odoo4projects.com/australia.html): managed Odoo Community hosting on our own servers in Sydney, for Australian businesses. The four plans and yearly prices, the checkout with Australia (Sydney) pre-selected, and the one Sydney claim we make — we host in Sydney (no AU support hours, no AU entity, no AUD price published).
+- [Odoo hosting offers](https://odoo4projects.com/odoo-hosting-offers/) — what a year of managed Odoo Community hosting costs: one flat yearly price, no per-user licence, no setup fee, 30-day free trial.
+- [Odoo Black Friday](https://odoo4projects.com/odoo-black-friday/) — our yearly Black Friday and Cyber Monday offer on managed Odoo Community hosting.
 - [Odoo hosting 2027 — comparison landing page](https://odoo4projects.com/odoo-hosting-2027.html): every route to Odoo (managed, VPS, odoo.sh, Odoo Online, own hardware) side by side, with annual and five-year cost comparisons.
 - [Odoo ERP Automation Bootcamp](https://odoo4projects.com/odoo-erp-automation-bootcamp/): a three-month, ten-session live bootcamp with Oliver Arnold, Technical Lead, that takes a small business from zero to a running ERP. Thursdays, one hour, Q1 2027, starting 21 January 2027; one year of hosted Odoo Community Edition included. The bootcamp is limited to six participants per cohort. The current price is confirmed on registration.
 - [ODOO x N8N Masterclass](https://odoo4projects.com/odoo-n8n-masterclass/): a two-hour live masterclass with Oliver Arnold on connecting Odoo to n8n — calling n8n webhooks from Odoo automated actions, how the n8n integration for Odoo works, and website workarounds that extend your automation. Hands-on in a free Odoo trial system; n8n itself runs on n8n's own free plan, which is not included. USD 120.00, next session the four Thursdays of February 2027 at 17:00 Central Time.