feat(web): Core Refactor Phase A — extract sampling and cache modules; add adaptive TTL + eviction heuristics, Redis PoC, and metrics wiring. Tests added for TTL, eviction, exports, splash-adaptive, card index, and service worker. Docs+roadmap updated.

code/tests/test_scryfall_name_normalization.py

@@ -0,0 +1,30 @@
+import re
+from code.web.services.theme_preview import get_theme_preview  # type: ignore
+
+# We can't easily execute the JS normalizeCardName in Python, but we can ensure
+# server-delivered sample names that include appended synergy annotations are not
+# leaking into subsequent lookups by simulating the name variant and asserting
+# normalization logic (mirrors regex in base.html) would strip it.
+
+NORMALIZE_RE = re.compile(r"(.*?)(\s*-\s*Synergy\s*\(.*\))$", re.IGNORECASE)
+
+def normalize(name: str) -> str:
+    m = NORMALIZE_RE.match(name)
+    if m:
+        return m.group(1).strip()
+    return name
+
+
+def test_synergy_annotation_regex_strips_suffix():
+    raw = "Sol Ring - Synergy (Blink Engines)"
+    assert normalize(raw) == "Sol Ring"
+
+
+def test_preview_sample_names_do_not_contain_synergy_suffix():
+    # Build a preview; sample names might include curated examples but should not
+    # include the synthesized ' - Synergy (' suffix in stored payload.
+    pv = get_theme_preview('Blink', limit=12)
+    for it in pv.get('sample', []):
+        name = it.get('name','')
+        # Ensure regex would not change valid names; if it would, that's a leak.
+        assert normalize(name) == name, f"Name leaked synergy annotation: {name}"