fix(site): correct prices, drop every discount claim and repair trial copy

Applies the 16 findings the user answered in projects/active/odoo-hosting-2027-landing/
decisions-2026-10-21-user.md, using the wording from
copywriter/out/site-fix-wording-2026-10-21.md.

index.html: Powerhouse 535 -> 595 in the card and in the JSON-LD Offer; delete the
three Save 8%/9%/10% badges and the empty badge div on the Empire card; replace the
'Save 15% with yearly billing' line and the coupon message text (ids kept - script.js
reads them); delete the FREE TRIAL coupon input block; qualify the checkout line as
'Card required to buy, not to start'; fix 'redundant slots' to the real rotating-slot
model; drop the 'coupon codes for startups and NGOs' promise; add Privacy and Terms to
the footer.

email/trial-confirmation.html: stop promising backups, domain mapping and SSL on the
trial (the trial has none); state what the trial is not; copyright 2024 -> 2026;
repoint Privacy/Terms from the 404 /legal/privacy and /legal/terms to the new pages.

support.html: state that custom and OCA modules install from On the Rise up and that
Side Hustle has no module installation.

odoo/upsell.html: '4 weeks free' -> '30 days free'.

blog: the backup speed-run no longer sends readers to a non-existent hosting
dashboard; my-first-post loses the 30-day refund promise and the dashboard domain
step; community-vs-enterprise-cost quotes $214/year instead of $19.40/month;
odoocommunity-agents drops 'per-seat licensing' from the body and both meta
descriptions.

sitemap.xml: add /privacy.html and /terms.html.
llms.txt: publish the Powerhouse price and list the two new pages.

Evidence: every old string verified gone and every new string present in the working
tree; 12 HTML files tag-balanced; JSON-LD and sitemap XML valid.

support.html

@@ -325,8 +325,8 @@
                             <span class="faq-icon"><i class="fas fa-chevron-down"></i></span>
                         </button>
                         <div class="faq-answer">
-                            <p>Open the Apps menu, search for the app you want, and click Install. Once installed, the app will appear in your main menu, ready to use. For additional apps not included by default, you can also install them via Git or use our one-click Quick Git feature for faster setup.</p>
-                            <p>All Odoo Community apps are included, and more free apps can be found at <a href="https://odoo-community.org/" target="_blank" rel="noopener">odoo-community.org</a>.</p>
+                            <p>Open the Apps menu, search for the app you want, and click Install. That covers every app that ships with Odoo Community, and it works on every plan.</p>
+                            <p>Apps that are not part of Odoo Community — custom modules and modules from <a href="https://odoo-community.org/" target="_blank" rel="noopener">odoo-community.org</a> — are installed for you by Git or with our one-click Quick Git. Custom and OCA modules install from On the Rise up. Side Hustle has no module installation.</p>
                         </div>
                     </div>
                     <div class="faq-item">