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/crm/static/src/js/fields/many2one_avatar_leader_user.js

@@ -0,0 +1,31 @@
+import {
+    many2OneAvatarUserField,
+    Many2OneAvatarUserField,
+} from "@mail/views/web/fields/many2one_avatar_user_field/many2one_avatar_user_field";
+import { registry } from "@web/core/registry";
+
+export class Many2OneAvatarLeaderUserField extends Many2OneAvatarUserField {
+    static props = {
+        ...Many2OneAvatarUserField.props,
+        teamField: String,
+    };
+
+    get m2oProps() {
+        return {
+            ...super.m2oProps,
+            context: {
+                ...super.m2oProps.context,
+                crm_formatted_display_name_team: Number(this.props.record.data[this.props.teamField].id),
+            },
+        };
+    }
+}
+
+registry.category("fields").add("many2one_avatar_leader_user", {
+    ...many2OneAvatarUserField,
+    component: Many2OneAvatarLeaderUserField,
+    extractProps: (fieldInfo, dynamicInfo) => ({
+        ...many2OneAvatarUserField.extractProps(fieldInfo, dynamicInfo),
+        teamField: fieldInfo.attrs.teamField,
+    }),
+});