Eliminate Python dependency: embed frontend assets in odoo-go

- Copy all OWL frontend assets (JS/CSS/XML/fonts/images) into frontend/
  directory (2925 files, 43MB) — no more runtime reads from Python Odoo
- Replace OdooAddonsPath config with FrontendDir pointing to local frontend/
- Rewire bundle.go, static.go, templates.go, webclient.go to read from
  frontend/ instead of external Python Odoo addons directory
- Auto-detect frontend/ and build/ dirs relative to binary in main.go
- Delete obsolete Python helper scripts (tools/*.py)

The Go server is now fully self-contained: single binary + frontend/ folder.

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

frontend/hr/static/tests/tours/hr_employee_flow.js

@@ -0,0 +1,37 @@
+import { registry } from "@web/core/registry";
+import { stepUtils } from "@web_tour/tour_utils";
+
+registry.category("web_tour.tours").add("hr_employee_tour", {
+    url: "/odoo",
+    steps: () => [
+        stepUtils.showAppsMenuItem(),
+        {
+            content: "Open Employees app",
+            trigger: ".o_app[data-menu-xmlid='hr.menu_hr_root']",
+            run: "click",
+        },
+        {
+            content: "Open an Employee Profile",
+            trigger: ".o_kanban_record:contains('Johnny H.')",
+            run: "click",
+        },
+        {
+            content: "Open a chat with the employee",
+            trigger: ".o_employee_chat_btn",
+            run: "click",
+        },
+        {
+            trigger: ".o-mail-ChatWindow .o-mail-ChatWindow-header:contains('Johnny H.')",
+        },
+        {
+            content: "Open user account menu",
+            trigger: ".o_user_menu .dropdown-toggle",
+            run: "click",
+        },
+        {
+            content: "Open My Preferences",
+            trigger: "[data-menu=preferences]",
+            run: "click",
+        },
+    ],
+});