feat(invoices): add tooltip description to Update Stock checkbox (#55868)

* feat(invoices): add tooltip description to Update Stock checkbox

Adds a description below the Update Stock checkbox on both Sales Invoice
and Purchase Invoice so users understand when to use the field without
consulting documentation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(invoices): replace Update Stock description with hover info tooltip

Removes the inline description text and adds an ℹ icon next to the
Update Stock checkbox label on both Sales Invoice and Purchase Invoice.
Hovering the icon shows the contextual tooltip via Bootstrap tooltip.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(invoices): use Frappe native tooltip-content class for Update Stock icon

Replace Bootstrap .tooltip() (pure black bg) with Frappe's own
.tooltip-content CSS class so the hover tooltip matches the rest of
the ERPNext UI — uses var(--bg-dark-gray) and var(--text-dark).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(invoices): use frappe.ui.SidebarCard for Update Stock info tooltip

Replace custom CSS tooltip with the same SidebarCard + Popper approach
Frappe's InfoCard uses for field description tooltips — gives the native
ERPNext card appearance (white card, border, shadow) on hover.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(invoices): use built-in field description for Update Stock tooltip

Replace custom SidebarCard JS tooltip with Frappe's native
description + show_description_on_click field property on the
update_stock field in Sales Invoice and Purchase Invoice.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: remove duplicate description in purchase_invoice update_stock field

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* revert: restore custom tooltip in purchase_invoice.js

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* revert: remove all changes from purchase_invoice.js

Keep purchase_invoice.js identical to upstream develop.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
(cherry picked from commit a9029f83c7)

erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json

@@ -606,10 +606,12 @@
   {
    "default": "0",
    "depends_on": "eval:doc.items.every((item) => !item.pr_detail)",
+   "description": "If checked, updates inventory; stock and accounting entries are created together. Leave unchecked if a Purchase Receipt is created separately.",
    "fieldname": "update_stock",
    "fieldtype": "Check",
    "label": "Update Stock",
-   "print_hide": 1
+   "print_hide": 1,
+   "show_description_on_click": 1
   },
   {
    "fieldname": "scan_barcode",
@@ -1698,7 +1700,7 @@
  "idx": 204,
  "is_submittable": 1,
  "links": [],
- "modified": "2026-05-28 12:36:55.215363",
+ "modified": "2026-06-13 18:36:46.704623",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Purchase Invoice",

erpnext/accounts/doctype/sales_invoice/sales_invoice.json

@@ -717,6 +717,7 @@
   {
    "default": "0",
    "depends_on": "eval:doc.items.every((item) => !item.dn_detail)",
+   "description": "If checked, updates inventory; stock and accounting entries are created together. Leave unchecked if a Delivery Note is created separately.",
    "fieldname": "update_stock",
    "fieldtype": "Check",
    "hide_days": 1,
@@ -724,7 +725,8 @@
    "label": "Update Stock",
    "oldfieldname": "update_stock",
    "oldfieldtype": "Check",
-   "print_hide": 1
+   "print_hide": 1,
+   "show_description_on_click": 1
   },
   {
    "fieldname": "scan_barcode",