feat(certificates): Fischerscope thickness-report upload wizard

Operators now drop a .docx or .pdf Fischerscope XDAL 600 export
on the cert form's Thickness Report tab. The wizard parses the
readings, calibration std, operator + date metadata, and the
embedded microscope image, then shows them for review before
recording on fp.certificate.

  Operator         Wizard               Certificate
  ─────────────────────────────────────────────────────────────
  Click "Upload    Parse .docx /        - thickness_reading_ids
   Thickness         .pdf →               written (3 rows)
   Report"         Show 3 readings      - x_fc_local_thickness
  Pick file        + metadata             _pdf attached (original
  Click Parse      Click Save             file)
                                        - microscope image as
                                          ir.attachment on cert
                                        - chatter post
  ─────────────────────────────────────────────────────────────

When parse can't find readings (unrecognised format), wizard falls
through to manual state — operator can still save, file lands on
the cert as-is for the existing CoC page-2 merge logic.

Closes the gap in the S19 enforcement: x_fc_send_thickness_report
customers blocked at action_issue until the file is on file. Now
they have a parseable upload UX, not just a bare Binary field.

Architecture
- fischerscope_parser.py: pure-Python lib, branches on extension,
  python-docx + PyPDF2 already on entech (no new deps). Regex
  extraction returns {readings, metadata, image, errors}.
- fp.thickness.upload.wizard: TransientModel with upload/review/
  manual states. Lazy-imports parser at action_parse time to dodge
  Python 3.11 partial-init relative-import error.
- 27 tests (TestFischerscopeParser 9 + TestThicknessUploadWizard 8
  + the rehoused TestActionIssueGates 10) — all green on entech.

Same metadata copies onto every reading row, microscope image
attaches once at cert level (decisions 2026-05-19).

Drive-by fixes uncovered while running tests on entech:
- fp.certificate.action_issue: guard rec.company_id access with
  field-existence check. Lazy-fill-signer branch crashed when
  certified_by_id was unset on certs that don't carry a company_id
  field. Pre-existing bug that never fired in production because
  jobs auto-fill certified_by_id before reaching this branch.
- test_action_issue_gates: set x_fc_send_thickness_report=False on
  the test partner. Field defaults to True so every cert in this
  class hit the thickness gate; tests were never able to verify
  the other gates in isolation.
- Tests directory missing test_action_issue_gates.py on entech.
  Synced; turns out the 2026-05-18 "changes" commit added the file
  locally but the deploy script never copied tests/.

Module: fusion_plating_certificates 19.0.6.4.0 → 19.0.7.0.0

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_jobs/views/fp_certificate_views.xml

@@ -94,11 +94,30 @@
                                widget="many2one_binary"
                                invisible="not x_fc_thickness_pdf_id"/>
                     </group>
-                    <separator string="Upload Fischerscope PDF here"/>
-                    <group>
+                    <separator string="Upload Fischerscope Report"/>
+                    <div class="oe_button_box">
+                        <button name="%(fusion_plating_certificates.action_fp_thickness_upload_wizard)d"
+                                type="action"
+                                class="btn-primary"
+                                string="Upload Thickness Report"
+                                context="{'default_certificate_id': id}"
+                                invisible="state != 'draft'"/>
+                    </div>
+                    <div class="text-muted">
+                        <p>
+                            Drop the <code>.docx</code> or <code>.pdf</code>
+                            file straight from the Fischerscope&#160;XDAL&#160;600.
+                            The wizard reads the readings, calibration set,
+                            and operator info, lets you review them, and
+                            attaches the original file to this certificate.
+                        </p>
+                    </div>
+                    <separator string="Attached File"
+                               invisible="not x_fc_local_thickness_pdf"/>
+                    <group invisible="not x_fc_local_thickness_pdf">
                         <field name="x_fc_local_thickness_pdf"
                                filename="x_fc_local_thickness_pdf_filename"
-                               readonly="state != 'draft'"/>
+                               readonly="1"/>
                         <field name="x_fc_local_thickness_pdf_filename"
                                invisible="1"/>
                     </group>