feat(configurator): Part cell rows 2-3 now editable — type to save

Customer feedback: rows 2 (description) and 3 (serials) in the Part
cell rendered as read-only spans. User wanted to edit directly.

New writable computed fields on fp.direct.order.line:
- part_name_editable: compute reads part_catalog_id.name, inverse
  writes back to part.name on the linked catalog record
- serials_text: compute joins serial_ids names with commas; inverse
  parses the typed string and find-or-creates fp.serial records,
  updates the line's serial_ids M2M

Removed the redundant rev separator (display_name already includes
'(Rev X)' so showing it twice was clutter). Rev edits happen by
editing the part record directly via the OPEN button.

OWL widget templates updated:
- Row 2: <input> bound to part_name_editable, t-on-change saves
- Row 3: <input> bound to serials_text, t-on-change parses + saves

SCSS:
- Row 2 input: italic, transparent border, focus tints background yellow
- Row 3 input: small grey text, comma-separated friendly placeholder
- Both disabled-look when no part is picked

Both inputs trigger the inverse method on blur. The G4 sync chain
takes over from there to push line.line_description etc. back to
the part as before — so editing in the line keeps the part defaults
fresh for future orders.

fusion_plating/fusion_plating_configurator/static/src/js/express_part_cell.js

@@ -1,25 +1,17 @@
 /** @odoo-module **/
 
-// Express Orders — multi-row Part cell widget (2026-05-26)
+// Express Orders — multi-row Part cell widget (2026-05-26, revised 2026-05-27)
 //
-// Replaces the standard Many2One renderer for `part_catalog_id` in
-// the Express Orders line list. Shows three stacked rows in ONE
-// cell, mirroring the brainstorm mockup:
-//
-//   Row 1: Part # / Revision  (bold; part # is the active picker)
-//   Row 2: Part description    (italic, muted)
-//   Row 3: Serial #(s)         (small grey, joined by ", ")
-//                              + small "+ bulk" button
-//
-// Pre-fetched fields used (read off the line record, no RPC needed):
-//   - part_catalog_id (M2O, the actual picker)
-//   - part_number_display (related Char from part.part_number)
-//   - part_revision_display (related Char from part.revision)
-//   - part_name_display (related Char from part.name)
-//   - serial_ids (M2M list)
-//
-// Bulk button calls action_open_serial_bulk_add on the line which
-// opens the existing fp.serial.bulk.add.wizard.
+// Row 1: Many2OneField picker (shows part_catalog_id.display_name —
+//        which is just the part_number when fp_express_part_picker
+//        context flag is set).
+// Row 2: editable input bound to part_name_editable (writable compute
+//        with inverse that writes part.name on the linked catalog
+//        record — see fp_direct_order_line.py).
+// Row 3: editable input bound to serials_text (parses comma-separated
+//        names, finds-or-creates fp.serial records, updates the line's
+//        serial_ids M2M) + small "+ bulk" button that opens the existing
+//        fp.serial.bulk.add.wizard for paste-list / range-fill entry.
 
 import { Component } from "@odoo/owl";
 import { registry } from "@web/core/registry";
@@ -38,37 +30,40 @@ export class FpExpressPartCell extends Component {
         this.notification = useService("notification");
     }
 
-    get partRev() {
-        return this.props.record.data.part_revision_display || "";
+    get hasPart() {
+        return !!this.props.record.data.part_catalog_id;
     }
 
     get partName() {
-        return this.props.record.data.part_name_display || "";
+        return this.props.record.data.part_name_editable || "";
     }
 
-    get serialsList() {
-        const serials = this.props.record.data.serial_ids;
-        if (!serials || !serials.records) return [];
-        return serials.records
-            .map(r => r.data && (r.data.display_name || r.data.name))
-            .filter(Boolean);
+    get serialsText() {
+        return this.props.record.data.serials_text || "";
     }
 
-    get serialsDisplay() {
-        const list = this.serialsList;
-        if (!list.length) return "";
-        if (list.length <= 3) return list.join(", ");
-        return list.slice(0, 3).join(", ") + ` +${list.length - 3} more`;
+    async onNameChange(ev) {
+        const newName = (ev.target.value || "").trim();
+        if (newName === this.partName.trim()) return;
+        await this.props.record.update({ part_name_editable: newName });
     }
 
-    get hasPart() {
-        return !!this.props.record.data.part_catalog_id;
+    async onSerialsChange(ev) {
+        const newVal = (ev.target.value || "").trim();
+        if (newVal === this.serialsText.trim()) return;
+        await this.props.record.update({ serials_text: newVal });
+    }
+
+    async _ensureSaved() {
+        if (!this.props.record.resId) {
+            await this.props.record.save();
+        }
+        return !!this.props.record.resId;
     }
 
     async onBulkClick(ev) {
         ev.stopPropagation();
         ev.preventDefault();
-
         if (!this.hasPart) {
             this.notification.add(
                 "Pick a part first, then click + bulk to add serials.",
@@ -76,20 +71,13 @@ export class FpExpressPartCell extends Component {
             );
             return;
         }
-
-        // If the record is brand-new (no resId yet), persist it first so
-        // the bulk-add wizard has a valid target id to write into.
-        if (!this.props.record.resId) {
-            await this.props.record.save();
-        }
-        if (!this.props.record.resId) {
+        if (!(await this._ensureSaved())) {
             this.notification.add(
                 "Save the order first before bulk-adding serials.",
                 { type: "warning" }
             );
             return;
         }
-
         const action = await this.orm.call(
             this.props.record.resModel,
             "action_open_serial_bulk_add",
@@ -99,8 +87,6 @@ export class FpExpressPartCell extends Component {
     }
 }
 
-// Register the field widget. supportedTypes=many2one because the field
-// it binds to (part_catalog_id) is a Many2One.
 export const fpExpressPartCell = {
     ...many2OneField,
     component: FpExpressPartCell,