test: fix v3 branding drift, add reconcile CLI + registry coverage

GUI/lang-pack tests were asserting against pre-v3 strings ("Data
Cleaning Mastery", "Maestría en limpieza…") that the brand refresh
replaced with "UNALOGIX DataTools" + "Clean. Normalize. Transform."
Updated assertions to the current copy and switched the findings
panel tests to the redesigned flat-list layout (per-finding "Open
Tool →" buttons instead of per-tool expanders).

New coverage:
- tests/test_cli_reconcile.py (13) — preview/apply, tolerance flags,
  sign inversion, key flags, error paths, Excel input.
- tests/test_tools_registry.py (27) — unique tool_ids, page_slug →
  real file, valid sections/tiers, localized accessor fallbacks,
  explicit pins for PDF Extractor + Reconciler entries.
- tests/test_reconcile.py — one-side-empty, key-pass tagging,
  additional validation cases, input-DataFrame immutability.
- tests/gui/test_smoke.py — PAGE_SLUGS now includes 10_PDF_Extractor
  and 11_Reconciler in both en/es.
- tests/gui/test_workflows.py — TestPdfExtractorWorkflow and
  TestReconcilerWorkflow render checks.

Net: 2317 passed → 2418 passed, 0 failures.

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

tests/gui/test_smoke.py

@@ -34,6 +34,8 @@ PAGE_SLUGS = [
     "7_Multi_File_Merger",
     "8_Validator_Reporter",
     "9_Pipeline_Runner",
+    "10_PDF_Extractor",
+    "11_Reconciler",
     "99_Close",
 ]
 
@@ -61,17 +63,28 @@ EXPECTED_SUBSTRINGS: dict[str, dict[str, str]] = {
     "7_Multi_File_Merger":   {"en": "Combine Files",     "es": "Combinar archivos"},
     "8_Validator_Reporter":  {"en": "Quality Check",     "es": "Verificación de calidad"},
     "9_Pipeline_Runner":     {"en": "Automated",         "es": "Flujos automatizados"},
+    # The PDF Extractor and Reconciler pages are English-only today
+    # (translations tracked as a follow-up). The smoke test value is
+    # still that the page *renders at all* in 'es'; the substring is
+    # the same English hero text under both languages.
+    "10_PDF_Extractor":      {"en": "PDF to CSV",        "es": "PDF to CSV"},
+    "11_Reconciler":         {"en": "Reconcile",         "es": "Reconcile"},
     "99_Close":              {"en": "Shutting down",     "es": "Cerrando"},
 }
 
 
 class TestHomePageRenders:
-    """The home page is the only one with full EN/ES coverage in v1.6.
-    Pin it independently so its translation is non-regressable."""
+    """Pin the home hero in both languages.
+
+    Since the v3 brand refresh the title is the literal wordmark
+    ("UNALOGIX DataTools") in both packs; the localized tagline is
+    what shifts between en and es. We assert against the tagline
+    string, which lives in ``home.caption`` of each pack.
+    """
 
     @pytest.mark.parametrize("lang,expected", [
-        ("en", "DataTools — Data Cleaning Mastery"),
-        ("es", "DataTools — Maestría en limpieza de datos"),
+        ("en", "Clean. Normalize. Transform."),
+        ("es", "Limpia. Normaliza. Transforma."),
     ])
     def test_home_renders_in_language(self, home_app, lang, expected):
         with_language(home_app, lang)
@@ -81,11 +94,15 @@ class TestHomePageRenders:
         )
         assert expected in collected_text(home_app)
 
-    def test_home_renders_footer_in_es(self, home_app):
+    def test_home_renders_privacy_pill_in_es(self, home_app):
+        # The footer caption is rendered via a component-iframe so
+        # ``collected_text`` can't see it. The privacy pill on the
+        # home header IS visible to AppTest and carries the same
+        # locality story, so we pin that instead.
         with_language(home_app, "es")
         home_app.run()
         text = collected_text(home_app)
-        assert "Tus datos nunca salen" in text or "Se ejecuta localmente" in text
+        assert "Se ejecuta 100% en local" in text
 
 class TestEveryPageRenders:
     """Parametrize over (page, language). Failure tells you exactly which