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/measurement-control/measurement-control.svg

@@ -50,35 +50,35 @@
   </style>
 </defs>
 <rect class="canvas" width="680" height="503" />
-<polyline class="edge kind-read style-solid emphasis-normal" points="263.5,131.0 263.5,179.0 263.5,179.0 263.5,227.0" data-evidence="596-610" />
-<rect class="edge-label-bg" x="248.3" y="165.0" width="78.3" height="22" rx="3" />
-<text class="edge-label" x="287.5" y="180.0">비교 기준을 준다</text>
-<polyline class="edge kind-request style-solid emphasis-normal" points="254.5,291.0 254.5,339.0 157.0,339.0 157.0,387.0" data-evidence="596-618" />
-<rect class="edge-label-bg" x="173.3" y="297.0" width="64.9" height="22" rx="3" />
-<text class="edge-label" x="205.8" y="312.0">대조가 있으면</text>
-<polyline class="edge kind-blocked style-solid emphasis-normal" points="272.5,291.0 272.5,339.0 380.5,339.0 380.5,387.0" data-evidence="607-618" />
-<rect class="edge-label-bg" x="294.1" y="297.0" width="64.9" height="22" rx="3" />
-<text class="edge-label" x="326.5" y="312.0">대조가 없으면</text>
+<polyline class="edge kind-read style-solid emphasis-normal" points="250.0,131.0 250.0,179.0 250.0,179.0 250.0,227.0" data-evidence="596-610" />
+<rect class="edge-label-bg" x="248.2" y="165.0" width="51.5" height="22" rx="3" />
+<text class="edge-label" x="274.0" y="180.0">비교 기준</text>
+<polyline class="edge kind-request style-solid emphasis-normal" points="241.0,291.0 241.0,339.0 145.0,339.0 145.0,387.0" data-evidence="596-618" />
+<rect class="edge-label-bg" x="163.9" y="297.0" width="58.2" height="22" rx="3" />
+<text class="edge-label" x="193.0" y="312.0">대조군 있음</text>
+<polyline class="edge kind-blocked style-solid emphasis-normal" points="259.0,291.0 259.0,339.0 355.0,339.0 355.0,387.0" data-evidence="607-618" />
+<rect class="edge-label-bg" x="277.9" y="297.0" width="58.2" height="22" rx="3" />
+<text class="edge-label" x="307.0" y="312.0">대조군 없음</text>
 <g id="node-baseline">
-<rect class="node-shape kind-process emphasis-primary role-source" data-evidence="596-606" x="188.5" y="60.0" width="150.0" height="71.0" rx="7" />
-<text class="node-label" x="263.5" y="87.0">주입 전 대조군</text>
-<line class="node-detail-divider" x1="202.5" y1="108.0" x2="324.5" y2="108.0" />
-<text class="node-detail" x="204.5" y="125.0">900건 중 오류 0</text>
+<rect class="node-shape kind-process emphasis-primary role-source" data-evidence="596-606" x="175.0" y="60.0" width="150.0" height="71.0" rx="7" />
+<text class="node-label" x="250.0" y="87.0">주입 전 대조군</text>
+<line class="node-detail-divider" x1="189.0" y1="108.0" x2="311.0" y2="108.0" />
+<text class="node-detail" x="191.0" y="125.0">900건 중 오류 0</text>
 </g>
 <g id="node-observation">
-<rect class="node-shape kind-process emphasis-normal role-control" data-evidence="607-618" x="188.5" y="227.0" width="150.0" height="64.0" rx="7" />
-<text class="node-label" x="263.5" y="257.0">주입 중 관측</text>
+<rect class="node-shape kind-process emphasis-normal role-control" data-evidence="607-618" x="175.0" y="227.0" width="150.0" height="64.0" rx="7" />
+<text class="node-label" x="250.0" y="257.0">주입 중 관측</text>
 </g>
 <g id="node-attribution">
-<rect class="node-shape kind-process emphasis-primary role-target" data-evidence="596-618" x="70.0" y="387.0" width="174.0" height="71.0" rx="7" />
-<text class="node-label" x="157.0" y="414.0">귀속</text>
-<line class="node-detail-divider" x1="84.0" y1="435.0" x2="230.0" y2="435.0" />
-<text class="node-detail" x="86.0" y="452.0">대조군이 0 이므로 한 번도 갱신 탓</text>
+<rect class="node-shape kind-process emphasis-primary role-target" data-evidence="596-618" x="70.0" y="387.0" width="150.0" height="71.0" rx="7" />
+<text class="node-label" x="145.0" y="414.0">귀속</text>
+<line class="node-detail-divider" x1="84.0" y1="435.0" x2="206.0" y2="435.0" />
+<text class="node-detail" x="86.0" y="452.0">대조군 0 → 귀속 성립</text>
 </g>
 <g id="node-misreport">
-<rect class="node-shape kind-process emphasis-warning role-target" data-evidence="607-618" x="304.0" y="387.0" width="153.0" height="71.0" rx="7" />
-<text class="node-label" x="380.5" y="414.0">오보</text>
-<line class="node-detail-divider" x1="318.0" y1="435.0" x2="443.0" y2="435.0" />
-<text class="node-detail" x="320.0" y="452.0">76건 실패는 로컬 아티팩트였다</text>
+<rect class="node-shape kind-process emphasis-warning role-target" data-evidence="607-618" x="280.0" y="387.0" width="150.0" height="71.0" rx="7" />
+<text class="node-label" x="355.0" y="414.0">오보</text>
+<line class="node-detail-divider" x1="294.0" y1="435.0" x2="416.0" y2="435.0" />
+<text class="node-detail" x="296.0" y="452.0">로컬 아티팩트 76건</text>
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 </svg>