Remove all external odoo.com URLs — no phone home

Backend (Go):
- handleSessionAccount: returns /odoo/action-100 (local settings)
- support_url: empty string

Frontend (JS):
- user_menu_items.js: account link navigates locally, no fallback
- upgrade_dialog.js: no external upgrade URL
- documentation_link.js: returns empty string

All 5 identified external URL references eliminated.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/web/static/src/views/widgets/documentation_link/documentation_link.js

@@ -26,7 +26,7 @@ export class DocumentationLink extends Component {
                       "-"
                   )
                 : "master";
-            return "https://www.odoo.com/documentation/" + serverVersion + this.props.path;
+            return ""; // No external documentation link
         }
     }
 

frontend/web/static/src/webclient/settings_form_view/fields/upgrade_dialog.js

@@ -16,10 +16,8 @@ export class UpgradeDialog extends Component {
         const usersCount = await this.orm.call("res.users", "search_count", [
             [["share", "=", false]],
         ]);
-        window.open(
-            "https://www.odoo.com/odoo-enterprise/upgrade?num_users=" + usersCount,
-            "_blank"
-        );
+        // No external upgrade URL — local installation
+        console.log("Upgrade not available in local installation");
         this.props.close();
     }
 }

frontend/web/static/src/webclient/user_menu/user_menu_items.js

@@ -77,11 +77,9 @@ export function odooAccountItem(env) {
         callback: () => {
             rpc("/web/session/account")
                 .then((url) => {
-                    browser.open(url, "_blank");
+                    if (url) window.location = url;
                 })
-                .catch(() => {
-                    browser.open("https://accounts.odoo.com/account", "_blank");
-                });
+                .catch(() => {});
         },
         sequence: 60,
     };