Per-word brightness: anchors glow, slant attachments whisper

Strength is now per token, not per family — a word that only slant-
matches its family (placement riding creation/elation's -ation core)
caps at 0.6 while the perfect anchors stay at 1.0. The gradient now
lives within a single color, showing each word's own grip on the rhyme.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app.py

@@ -1325,9 +1325,14 @@ def analyze(draft: Draft):
     for t in [*tokens, *phrases]:
         if t["gid"] is None:
             continue
+        gstr = groups_out[t["gid"]]["strength"]
+        # a member that only slant-matches its family glows less than the
+        # anchors that define it
+        tstr = min(gstr, 0.6) if t["slant"] else gstr
         d = {"l": t["line"], "s": t["start"], "e": t["end"], "g": t["gid"],
              "end": t["is_end"], "ph": "vowels" in t,
-             "slant": t["slant"] or groups_out[t["gid"]]["slant"]}
+             "slant": t["slant"] or groups_out[t["gid"]]["slant"],
+             "str": round(tstr, 2)}
         if "vowels" not in t:  # single word: where its rhyming tail starts
             d["rs"] = t["start"] + rhyme_char_start(t["word"])
         toks_out.append(d)

static/index.html

@@ -636,8 +636,8 @@ function render(){
                   : (p && (focusGid === null || p.g === focusGid)) ? p
                   : (w || p);
           let alpha = !t.ph ? (t.end ? 34 : 19) : (t.end ? 24 : 14);
-          const str = (groupInfo[t.g] && groupInfo[t.g].strength) || 1;
-          alpha = Math.round(alpha * (0.45 + 0.55 * str));  // brightness = rhyme strength
+          const str = t.str != null ? t.str : ((groupInfo[t.g] && groupInfo[t.g].strength) || 1);
+          alpha = Math.round(alpha * (0.4 + 0.6 * str));  // brightness = this word's rhyme strength
           if(focusGid !== null && t.g === focusGid){
             alpha = Math.min(85, Math.round(alpha * 2.8));
             style += 'color:#1a120c;font-weight:600;';  // dark ink on the lit chip
@@ -646,7 +646,7 @@ function render(){
           // faint underline on the rhyming tail (rs..e) of a word — a
           // whisper of precision under the full-word fill
           if(w && w.rs != null && a >= w.rs){
-            const u = Math.round(42 * ((groupInfo[w.g] && groupInfo[w.g].strength) || 1));
+            const u = Math.round(42 * (w.str != null ? w.str : 1));
             shadows.push(`inset 0 -1.5px 0 0 color-mix(in srgb, ${colorOf(w)} ${u}%, transparent)`);
           }
         }else if(op){