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/project/static/tests/project_task_groupby.test.js

@@ -0,0 +1,59 @@
+import { beforeEach, expect, test } from "@odoo/hoot";
+import { mountView, quickCreateKanbanColumn } from "@web/../tests/web_test_helpers";
+
+import { defineProjectModels, ProjectTask } from "./project_models";
+
+defineProjectModels();
+
+const kanbanViewParams = {
+    resModel: "project.task",
+    type: "kanban",
+    arch: `<kanban default_group_by="stage_id" js_class="project_task_kanban">
+                <templates>
+                    <t t-name="card"/>
+                </templates>
+            </kanban>`,
+};
+
+beforeEach(() => {
+    ProjectTask._records = [
+        {
+            id: 1,
+            name: "My task",
+            project_id: false,
+            user_ids: [],
+            date_deadline: false,
+        },
+    ];
+});
+
+test("project.task (kanban): Can create stage if we are in tasks of specific project", async () => {
+    await mountView({
+        ...kanbanViewParams,
+        context: {
+            default_project_id: 1,
+        },
+    });
+    expect(".o_column_quick_create").toHaveCount(1, {
+        message: "should have a quick create column",
+    });
+    expect(".o_column_quick_create.o_quick_create_folded").toHaveCount(1, {
+        message: "Add column button should be visible",
+    });
+    await quickCreateKanbanColumn();
+    expect(".o_column_quick_create input").toHaveCount(1, {
+        message: "the input should be visible",
+    });
+});
+
+test("project.task (kanban): Cannot create stage if we are not in tasks of specific project", async () => {
+    await mountView({
+        ...kanbanViewParams,
+    });
+    expect(".o_column_quick_create").toHaveCount(0, {
+        message: "quick create column should not be visible",
+    });
+    expect(".o_column_quick_create.o_quick_create_folded").toHaveCount(0, {
+        message: "Add column button should not be visible",
+    });
+});