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/purchase/static/src/components/monetary_field_no_zero/monetary_field_no_zero.js

@@ -0,0 +1,23 @@
+import { monetaryField, MonetaryField } from "@web/views/fields/monetary/monetary_field";
+import { registry } from "@web/core/registry";
+import { floatIsZero } from "@web/core/utils/numbers";
+
+export class MonetaryFieldNoZero extends MonetaryField {
+    static props = {
+        ...MonetaryField.props,
+    };
+
+    /** Override **/
+    get value() {
+        const originalValue = super.value;
+        const decimals = this.currencyDigits ? this.currencyDigits[1] : 2;
+        return floatIsZero(originalValue, decimals) ? false : originalValue;
+    }
+}
+
+export const monetaryFieldNoZero = {
+    ...monetaryField,
+    component: MonetaryFieldNoZero,
+};
+
+registry.category("fields").add("monetary_no_zero", monetaryFieldNoZero);

frontend/purchase/static/src/components/open_match_line_widget/open_match_line_widget.js

@@ -0,0 +1,27 @@
+import { registry } from "@web/core/registry";
+import { useService } from "@web/core/utils/hooks";
+import { standardFieldProps } from "@web/views/fields/standard_field_props";
+import { Component } from "@odoo/owl";
+
+class OpenMatchLineWidget extends Component {
+    static template = "purchase.OpenMatchLineWidget";
+    static props = { ...standardFieldProps };
+
+    setup() {
+        super.setup();
+        this.action = useService("action");
+    }
+
+    async openMatchLine() {
+        this.action.doActionButton({
+            type: "object",
+            resId: this.props.record.resId,
+            name: "action_open_line",
+            resModel: "purchase.bill.line.match",
+        });
+    }
+}
+
+registry.category("fields").add("open_match_line_widget", {
+    component: OpenMatchLineWidget,
+});

frontend/purchase/static/src/components/open_match_line_widget/open_match_line_widget.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<templates>
+
+    <t t-name="purchase.OpenMatchLineWidget">
+        <div t-out="props.record.data[props.name]" t-on-click.prevent.stop="openMatchLine"/>
+    </t>
+
+</templates>

frontend/purchase/static/src/components/purchase_file_uploader/purchase_file_uploader.js

@@ -0,0 +1,90 @@
+import { useService } from "@web/core/utils/hooks";
+import { registry } from "@web/core/registry";
+import { standardWidgetProps } from "@web/views/widgets/standard_widget_props";
+import { FileUploader } from "@web/views/fields/file_handler";
+import { WarningDialog } from "@web/core/errors/error_dialogs";
+import { _t } from "@web/core/l10n/translation";
+
+import { Component } from "@odoo/owl";
+
+export class PurchaseFileUploader extends Component {
+    static template = "purchase.DocumentFileUploader";
+    static props = {
+        ...standardWidgetProps,
+        record: { type: Object, optional: true },
+        list: { type: Object, optional: true },
+    };
+    static components = { FileUploader };
+
+    setup() {
+        this.orm = useService("orm");
+        this.action = useService("action");
+        this.dialog = useService("dialog");
+        this.attachmentIdsToProcess = [];
+    }
+
+    get resModel() {
+        return "purchase.order";
+    }
+
+    get records() {
+        return this.props.record ? [this.props.record] : this.props.list.records;
+    }
+
+    async getIds() {
+        if (this.props.record) {
+            return this.props.record.data.id;
+        }
+        return this.props.list.getResIds(true);
+    }
+
+    onClick(ev) {
+        if (this.env.config.viewType !== "list") {
+            return;
+        }
+        const vendorSet = new Set(this.props.list.selection.map((record) => record.data.partner_id.id));
+        if (vendorSet.size > 1) {
+            this.dialog.add(WarningDialog, {
+                title: _t("Validation Error"),
+                message: _t("You can only upload a bill for a single vendor at a time."),
+            });
+            return false;
+        }
+    }
+
+    async onFileUploaded(file) {
+        const att_data = {
+            name: file.name,
+            mimetype: file.type,
+            datas: file.data,
+        };
+        const [att_id] = await this.orm.create("ir.attachment", [att_data], {
+            context: { ...this.env.searchModel.context },
+        });
+        this.attachmentIdsToProcess.push(att_id);
+    }
+
+    async onUploadComplete() {
+        const resModel = this.resModel;
+        const ids = await this.getIds();
+        let action;
+        try {
+            action = await this.orm.call(
+                resModel,
+                "action_create_invoice",
+                [ids, this.attachmentIdsToProcess],
+                { context: { ...this.env.searchModel.context } }
+            );
+        } finally {
+            // ensures attachments are cleared on success as well as on error
+            this.attachmentIdsToProcess = [];
+        }
+        this.action.doAction(action);
+    }
+}
+
+export const purchaseFileUploader = {
+    component: PurchaseFileUploader,
+};
+
+registry.category("view_widgets").add("purchase_file_uploader", purchaseFileUploader);

frontend/purchase/static/src/components/purchase_file_uploader/purchase_file_uploader.xml

@@ -0,0 +1,18 @@
+<templates>
+    <t t-name="purchase.DocumentFileUploader">
+        <FileUploader
+            acceptedFileExtensions="props.acceptedFileExtensions"
+            fileUploadClass="'document_file_uploader'"
+            multiUpload="true"
+            onClick.bind="onClick"
+            onUploaded.bind="onFileUploaded"
+            onUploadComplete.bind="onUploadComplete">
+            <t t-set-slot="toggler">
+                <button type="button" class="btn btn-secondary" data-hotkey="shift+i">
+                    Upload Bill
+                </button>
+            </t>
+            <t t-slot="default"/>
+        </FileUploader>
+    </t>
+ </templates>

frontend/purchase/static/src/components/tax_totals/tax_totals.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates>
+    <t t-inherit="account.TaxTotalsField" t-inherit-mode="extension" owl="1">
+        <xpath expr="//tr[2]" position="after">
+            <tr t-if="totals.amount_total_cc">
+                <td colspan="2">
+                    <span t-out="totals.amount_total_cc" style="font-size: 1.1em;"/>
+                </td>
+            </tr>
+        </xpath>
+    </t>
+</templates>