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/a4-two-node-losses/a4-two-node-losses.svg

@@ -67,18 +67,18 @@
 <polygon class="node-shape kind-gateway emphasis-warning role-control" data-evidence="221-231" points="167.5,240.0 242.5,275.5 167.5,311.0 92.5,275.5" />
 <text class="node-label" x="167.5" y="267.0">진입 경로 (kc-lab-1)</text>
 <line class="node-detail-divider" x1="106.5" y1="288.0" x2="228.5" y2="288.0" />
-<text class="node-detail" x="108.5" y="305.0">kubectl 도 불통</text>
+<text class="node-detail" x="108.5" y="305.0">kubectl 불통</text>
 </g>
 <g id="node-workload">
 <rect class="node-shape kind-service emphasis-normal role-control" data-evidence="221-231" x="77.0" y="407.0" width="181.0" height="71.0" rx="7" />
 <text class="node-label" x="167.5" y="434.0">keycloak-0 (kc-lab-2)</text>
 <line class="node-detail-divider" x1="91.0" y1="455.0" x2="244.0" y2="455.0" />
-<text class="node-detail" x="93.0" y="472.0">도달할 수 없을 뿐이다</text>
+<text class="node-detail" x="93.0" y="472.0">도달 불가</text>
 </g>
 <g id="node-store">
 <rect class="node-shape kind-datastore emphasis-warning role-target" data-evidence="221-233" x="70.0" y="587.0" width="195.0" height="71.0" /><ellipse class="node-shape kind-datastore emphasis-warning role-target" cx="167.5" cy="587.0" rx="97.5" ry="13.0" /><path class="storage-bottom" d="M 70.0 658.0 A 97.5 13.0 0 0 0 265.0 658.0" />
 <text class="node-label" x="167.5" y="614.0">PostgreSQL (kc-lab-2)</text>
 <line class="node-detail-divider" x1="84.0" y1="635.0" x2="251.0" y2="635.0" />
-<text class="node-detail" x="86.0" y="652.0">local-path PVC 라 재배치 불가</text>
+<text class="node-detail" x="86.0" y="652.0">local-path PVC · 재배치 불가</text>
 </g>
 </svg>