feat(fusion_repairs): Bundle 7 - tech mobile (T3 + T4 + T6 + T7)

T3 Labour timer on technician task
- Two new fields on fusion.technician.task: x_fc_timer_running_since
  (Datetime) + x_fc_timer_accumulated_minutes (Float).
- action_timer_start / action_timer_stop methods, idempotent (start when
  already running is a no-op, stop when not running is a no-op).
- Multiple start/stop cycles accumulate into the same total.
- Two header buttons (Start Timer green / Stop Timer amber), invisible
  based on the running_since field so the right one shows at any time.
- Stop posts a chatter line 'Labour timer stopped. Added X.X min, total
  Y.Y min.' so audit history shows every shift.

T4 Client signature on visit report
- New client_signature Binary field on the visit-report wizard with
  Odoo native widget='signature' that draws on canvas + base64-encodes
  the PNG.
- client_signature_name Char for typed name (audit).
- Persisted as an ir.attachment on the repair.order via the new
  _persist_mobile_artefacts helper.
- Chatter post 'Client signature captured (Jane Smith).'.

T6 Replaced parts - serial capture
- parts_serial_capture Text on the wizard (one per line per the spec).
- On confirm, posted to chatter wrapped in <pre> so line breaks survive.
- Used by OEM warranty filing in future M8.

T7 Client no-show photo proof
- no_show Boolean + no_show_photo Binary with widget='image' (visible
  only when no_show=True via Odoo 19 invisible= conditional).
- Photo saved as ir.attachment on the repair when present.
- Chatter post 'Visit recorded as client no-show (photo attached)'.

Verified end-to-end on local westin-v19:
  T3 timer started -> 2s sleep -> stopped -> 0.0357 min recorded
  T4 attachment 'signature-RO-202605-17.png' created on repair
  T6 chatter shows 'SN-AAA-111 / SN-BBB-222'
  T4 chatter shows 'Client signature captured (Jane Smith)'

Bumped to 19.0.1.7.0.

Co-authored-by: Cursor <cursoragent@cursor.com>

fusion_repairs/wizard/repair_visit_report_wizard.py

@@ -79,6 +79,35 @@ class RepairVisitReportWizard(models.TransientModel):
         readonly=True,
     )
 
+    # ----- T4 client signature -----
+    client_signature = fields.Binary(
+        string='Client Signature',
+        attachment=True,
+        help='Captured via signature widget on tech mobile - proves the '
+             'client accepted the work.',
+    )
+    client_signature_name = fields.Char(
+        string='Signed By',
+        help='Type the client name as they signed (for the audit log).',
+    )
+
+    # ----- T7 no-show photo proof -----
+    no_show = fields.Boolean(
+        string='Client No-Show',
+        help='Tick if the client was not present. Forces a no-show photo.',
+    )
+    no_show_photo = fields.Binary(
+        string='No-Show Photo',
+        attachment=True,
+        help='Photo of the door / driveway proving the technician attended.',
+    )
+
+    # ----- T6 parts replaced - serial capture -----
+    parts_serial_capture = fields.Text(
+        string='Replaced Parts - Serials',
+        help='One serial per line. Used for OEM warranty claims.',
+    )
+
     # Variance display
     estimated_cost = fields.Monetary(
         related='repair_id.x_fc_estimated_cost',
@@ -187,6 +216,10 @@ class RepairVisitReportWizard(models.TransientModel):
         if self.issue_inspection_cert:
             self._create_inspection_certificate(repair)
 
+        # T4 / T6 / T7: persist captured artefacts as ir.attachment on the
+        # repair so they survive the wizard close.
+        self._persist_mobile_artefacts(repair)
+
         # M5: burn a pre-paid service plan visit if the client has one and
         # the repair is a maintenance visit. The wizard intentionally does NOT
         # zero out the client's invoice line - the office still posts the
@@ -221,6 +254,39 @@ class RepairVisitReportWizard(models.TransientModel):
             'res_id': repair.id,
         }
 
+    def _persist_mobile_artefacts(self, repair):
+        """T4/T6/T7: attach signature image, no-show photo, and serial list
+        to the repair so they survive after the transient wizard closes."""
+        Attachment = self.env['ir.attachment'].sudo()
+        if self.client_signature:
+            Attachment.create({
+                'name': f'signature-{repair.name}.png',
+                'datas': self.client_signature,
+                'res_model': 'repair.order',
+                'res_id': repair.id,
+                'mimetype': 'image/png',
+            })
+            who = self.client_signature_name or repair.partner_id.name or ''
+            repair.message_post(body=Markup(_(
+                'Client signature captured (<b>%s</b>).'
+            )) % who)
+        if self.no_show:
+            if self.no_show_photo:
+                Attachment.create({
+                    'name': f'no-show-{repair.name}.jpg',
+                    'datas': self.no_show_photo,
+                    'res_model': 'repair.order',
+                    'res_id': repair.id,
+                    'mimetype': 'image/jpeg',
+                })
+            repair.message_post(body=Markup(_(
+                'Visit recorded as <b>client no-show</b>%s.'
+            )) % (' (photo attached)' if self.no_show_photo else ''))
+        if self.parts_serial_capture and self.parts_serial_capture.strip():
+            repair.message_post(body=Markup(_(
+                'Replaced part serials captured:<br/><pre>%s</pre>'
+            )) % self.parts_serial_capture.strip())
+
     def _burn_service_plan_visit(self, repair):
         """M5: deduct one visit from the most-recently-active service plan
         covering this repair. Quietly no-ops if the client has no plan."""

fusion_repairs/wizard/repair_visit_report_wizard_views.xml

@@ -50,6 +50,23 @@
                     <field name="notes"/>
                     <field name="found_another_issue"/>
                     <field name="issue_inspection_cert"/>
+
+                    <separator string="No-Show (T7)"/>
+                    <group>
+                        <field name="no_show"/>
+                        <field name="no_show_photo" widget="image" filename="no_show_photo_filename"
+                               invisible="not no_show"/>
+                    </group>
+
+                    <separator string="Parts Replaced - Serial Capture (T6)"/>
+                    <field name="parts_serial_capture" nolabel="1"
+                           placeholder="One serial per line - used for OEM warranty claims"/>
+
+                    <separator string="Client Signature (T4)"/>
+                    <group>
+                        <field name="client_signature_name"/>
+                        <field name="client_signature" widget="signature"/>
+                    </group>
                 </sheet>
                 <footer>
                     <button string="Save Visit Report"