chore: tests, changelog, project docs (Phase G)

- Rename test_market_score.py → test_padelnomics_score.py
- Test 301 redirects from old /market-score URL
- Update i18n parity allowlist (remove mscore_*, add pnscore brand terms)
- Update CHANGELOG.md with single-score simplification
- Update PROJECT.md: mark single-score done, fix location_profiles refs

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

web/tests/test_i18n_parity.py

@@ -57,10 +57,10 @@ _IDENTICAL_VALUE_ALLOWLIST = {
     # Business plan — Indoor/Outdoor same in DE, financial abbreviations
     "bp_indoor", "bp_outdoor",
     "bp_lbl_ebitda", "bp_lbl_irr", "bp_lbl_moic", "bp_lbl_opex",
-    # Market Score — branded term kept in English in DE
-    "footer_market_score",
-    # Market Score chip labels — branded product names, same in DE
-    "mscore_reife_chip", "mscore_potenzial_chip",
+    # Padelnomics Score — branded term kept in English in DE
+    "footer_padelnomics_score", "bp_lbl_padelnomics_score",
+    # Map tooltip keys — some are identical in both languages
+    "map_score_label", "map_indoor", "map_outdoor",
     # Brand name "Padelnomics" — same in DE
     "landing_vs_col_us",
 }