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/stock/static/src/stock_warehouse_service.js

@@ -0,0 +1,19 @@
+import { registry } from "@web/core/registry";
+import { browser } from "@web/core/browser/browser";
+import { UPDATE_METHODS } from "@web/core/orm_service";
+import { rpcBus } from "@web/core/network/rpc";
+
+registry.category("services").add("stock_warehouse", {
+    dependencies: ["action"],
+    start(env, { action }) {
+        rpcBus.addEventListener("RPC:RESPONSE", (ev) => {
+            const { data, error } = ev.detail;
+            const { model, method } = data.params;
+            if (!error && model === "stock.warehouse") {
+                if (UPDATE_METHODS.includes(method) && !browser.localStorage.getItem("running_tour")) {
+                    action.doAction("reload_context");
+                }
+            }
+        });
+    },
+});