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/widgets/forecast_widget.js

@@ -0,0 +1,66 @@
+import { FloatField, floatField } from "@web/views/fields/float/float_field";
+import { formatDate } from "@web/core/l10n/dates";
+import { formatFloat } from "@web/views/fields/formatters";
+import { registry } from "@web/core/registry";
+import { useService } from "@web/core/utils/hooks";
+
+export class ForecastWidgetField extends FloatField {
+    static template = "stock.ForecastWidget";
+    setup() {
+        const { data, fields, resId } = this.props.record;
+        this.actionService = useService("action");
+        this.orm = useService("orm");
+        this.resId = resId;
+
+        this.forecastExpectedDate = formatDate(
+            data.forecast_expected_date,
+            fields.forecast_expected_date
+        );
+        if (data.forecast_expected_date && data.date_deadline) {
+            this.forecastIsLate = data.forecast_expected_date > data.date_deadline;
+        }
+        const digits = fields.forecast_availability.digits;
+        const options = { digits, thousandsSep: "", decimalPoint: "." };
+        const forecast_availability = parseFloat(formatFloat(data.forecast_availability, options));
+        const product_qty = parseFloat(formatFloat(data.product_qty, options));
+        this.willBeFulfilled = forecast_availability >= product_qty;
+        this.state = data.state;
+    }
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * Opens the Forecast Report for the `stock.move` product.
+     */
+    async _openReport(ev) {
+        ev.preventDefault();
+        ev.stopPropagation();
+        if (!this.resId || !this.props.record.data.is_storable) {
+            return;
+        }
+        const action = await this.orm.call("stock.move", "action_product_forecast_report", [
+            this.resId,
+        ]);
+        this.actionService.doAction(action);
+    }
+
+    get decoration() {
+        if (!this.forecastExpectedDate && this.willBeFulfilled){
+            return "text-bg-success"
+        } else if (this.forecastExpectedDate && this.willBeFulfilled){
+            return this.forecastIsLate ? 'text-bg-danger' : 'text-bg-warning'
+        } else {
+            return 'text-bg-danger'
+        }
+
+    }
+}
+
+export const forecastWidgetField = {
+    ...floatField,
+    component: ForecastWidgetField,
+};
+
+registry.category("fields").add("forecast_widget", forecastWidgetField);