docs(keycloak-session-store): take the sentences out of the diagram canvases

The skill says drawings carry names and sentences go in <desc> and the
paragraph beside the figure. I put sentences in node details and edge labels
instead, and 27 of the 28 diagrams shipped with prose inside the canvas —
"예측 다섯 개가 틀렸다", "아홉 번 조용히 실패했다", "막혀서 닿지 않는다".

Only label and details render on the canvas; description does not. So every
sentence moved to a noun phrase and the meaning stays in description, which
was already carrying it.

  막혀서 닿지 않는다              -> 차단
  아홉 번 조용히 실패했다         -> 조용한 실패 9건
  예측 다섯 개가 틀렸다           -> 틀린 예측 5건
  로그아웃이 정리하지 않는다      -> 로그아웃 미정리
  볼륨이 없으면 여기까지다        -> 볼륨 없음

Three node labels were sentences too and became names: 세션 스냅샷, 예측
선기록, 대조군 확보.

What stays is what the rules protect — identifiers, commands and measured
values: PRIMARY KEY (client_registration_id, principal_name),
ValidationFailedException: 1 changesets check sum, nginx -t && nginx -s
reload, SET LOCAL synchronous_commit TO OFF. Those are names of things, not
prose about them.

294 canvas strings across 28 diagrams, none matching a sentence ending,
average 11 characters. All 28 still lint clean and re-rendered.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/keycloak-session-store/final/assets/renewal-to-serving-gap/renewal-to-serving-gap.svg

@@ -50,18 +50,18 @@
   </style>
 </defs>
 <rect class="canvas" width="958" height="345" />
-<polyline class="edge kind-blocked style-solid emphasis-normal" points="592.5,251.5 677.8,251.5 677.8,189.0 763.0,189.0" data-evidence="536-540" />
-<rect class="edge-label-bg" x="635.8" y="206.2" width="131.9" height="22" rx="3" />
-<text class="edge-label" x="701.8" y="221.2">reload 없이는 닿지 않는다</text>
+<polyline class="edge kind-blocked style-solid emphasis-normal" points="575.0,251.5 669.0,251.5 669.0,189.0 763.0,189.0" data-evidence="536-540" />
+<rect class="edge-label-bg" x="653.9" y="206.2" width="78.3" height="22" rx="3" />
+<text class="edge-label" x="693.0" y="221.2">reload 필요</text>
 <polyline class="edge kind-request style-solid emphasis-normal" points="603.0,95.5 683.0,95.5 683.0,171.0 763.0,171.0" data-evidence="556-562" />
 <rect class="edge-label-bg" x="667.9" y="119.2" width="78.3" height="22" rx="3" />
 <text class="edge-label" x="707.0" y="134.2">reload 신호</text>
 <polyline class="edge kind-request style-solid emphasis-normal" points="220.0,171.0 300.0,171.0 300.0,95.5 380.0,95.5" data-evidence="527-533" />
 <rect class="edge-label-bg" x="281.5" y="119.2" width="85.0" height="22" rx="3" />
 <text class="edge-label" x="324.0" y="134.2">갱신 성공 시 호출</text>
-<polyline class="edge kind-write style-solid emphasis-normal" points="220.0,189.0 305.2,189.0 305.2,251.5 390.5,251.5" data-evidence="504-510" />
-<rect class="edge-label-bg" x="293.4" y="206.2" width="71.6" height="22" rx="3" />
-<text class="edge-label" x="329.2" y="221.2">새 인증서 기록</text>
+<polyline class="edge kind-write style-solid emphasis-normal" points="220.0,189.0 314.0,189.0 314.0,251.5 408.0,251.5" data-evidence="504-510" />
+<rect class="edge-label-bg" x="302.2" y="206.2" width="71.6" height="22" rx="3" />
+<text class="edge-label" x="338.0" y="221.2">새 인증서 기록</text>
 <g id="node-certbot">
 <rect class="node-shape kind-process emphasis-primary role-source" data-evidence="499-504" x="70.0" y="144.5" width="150.0" height="71.0" rx="7" />
 <text class="node-label" x="145.0" y="171.5">certbot renew</text>
@@ -75,10 +75,10 @@
 <text class="node-detail" x="396.0" y="125.0">nginx -t &amp;&amp; nginx -s reload</text>
 </g>
 <g id="node-live-link">
-<rect class="node-shape kind-datastore emphasis-primary role-store" data-evidence="536-540" x="390.5" y="216.0" width="202.0" height="71.0" /><ellipse class="node-shape kind-datastore emphasis-primary role-store" cx="491.5" cy="216.0" rx="101.0" ry="13.0" /><path class="storage-bottom" d="M 390.5 287.0 A 101.0 13.0 0 0 0 592.5 287.0" />
+<rect class="node-shape kind-datastore emphasis-primary role-store" data-evidence="536-540" x="408.0" y="216.0" width="167.0" height="71.0" /><ellipse class="node-shape kind-datastore emphasis-primary role-store" cx="491.5" cy="216.0" rx="83.5" ry="13.0" /><path class="storage-bottom" d="M 408.0 287.0 A 83.5 13.0 0 0 0 575.0 287.0" />
 <text class="node-label" x="491.5" y="243.0">live/fullchain.pem</text>
-<line class="node-detail-divider" x1="404.5" y1="264.0" x2="578.5" y2="264.0" />
-<text class="node-detail" x="406.5" y="281.0">archive/cert2.pem 을 가리킨다</text>
+<line class="node-detail-divider" x1="422.0" y1="264.0" x2="561.0" y2="264.0" />
+<text class="node-detail" x="424.0" y="281.0">→ archive/cert2.pem</text>
 </g>
 <g id="node-nginx">
 <rect class="node-shape kind-service emphasis-primary role-target" data-evidence="541-548" x="763.0" y="144.5" width="150.0" height="71.0" rx="7" />