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/.techviz/reproducibility-gap/spec.json

@@ -32,13 +32,13 @@
   "nodes": [
     {
       "id": "prose",
-      "label": "산문으로 적힌 측정 장치",
+      "label": "산문 상태의 측정 장치",
       "kind": "component",
       "role": "source",
       "emphasis": "warning",
       "description": "괄호와 설명으로 남아 있었다.",
       "details": [
-        "( curl ... ) & 를 20개 띄우고 wait"
+        "부하 생성기 20건"
       ],
       "evidence": [
         {
@@ -90,7 +90,7 @@
       "emphasis": "primary",
       "description": "실행까지 확인된 것만.",
       "details": [
-        "상주 탐침으로 20/20"
+        "상주 탐침 20/20"
       ],
       "evidence": [
         {
@@ -106,7 +106,7 @@
       "id": "p-c",
       "from": "prose",
       "to": "command",
-      "label": "바꿔 적는다",
+      "label": "명령화",
       "kind": "request",
       "evidence": [
         {
@@ -120,7 +120,7 @@
       "id": "c-e",
       "from": "command",
       "to": "execute",
-      "label": "돌려본다",
+      "label": "실행",
       "kind": "request",
       "evidence": [
         {
@@ -134,7 +134,7 @@
       "id": "e-v",
       "from": "execute",
       "to": "verified",
-      "label": "통과한 것만 남긴다",
+      "label": "통과분 채택",
       "kind": "request",
       "evidence": [
         {