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_project_state_selection.test.js

@@ -0,0 +1,45 @@
+import { expect, test } from "@odoo/hoot";
+import { click } from "@odoo/hoot-dom";
+import { fields, mountView } from "@web/../tests/web_test_helpers";
+
+import { defineProjectModels, ProjectProject } from "./project_models";
+
+defineProjectModels();
+
+test("project.project (kanban): check that ProjectStateSelectionField does not propose `Set Status`", async () => {
+    Object.assign(ProjectProject._fields, {
+        last_update_status: fields.Selection({
+            string: "Status",
+            selection: [
+                ["on_track", "On Track"],
+                ["at_risk", "At Risk"],
+                ["off_track", "Off Track"],
+                ["on_hold", "On Hold"],
+            ],
+        }),
+        last_update_color: fields.Integer({ string: "Update State Color" }),
+    });
+    ProjectProject._records = [
+        {
+            id: 1,
+            last_update_status: "on_track",
+            last_update_color: 20,
+        },
+    ];
+
+    await mountView({
+        resModel: "project.project",
+        type: "kanban",
+        arch: `
+            <kanban class="o_kanban_test">
+                <template>
+                    <t t-name="card">
+                        <field name="last_update_status" widget="project_state_selection"/>
+                    </t>
+                </template>
+            </kanban>
+        `,
+    });
+    await click("div[name='last_update_status'] button.dropdown-toggle");
+    expect(".dropdown-menu .dropdown-item:contains('Set Status')").toHaveCount(0);
+});