docs(keycloak-session-store): import the session-storage lab as a new project

The keycloak project ended with four open questions that design could not
settle. A two-VM lab was built to answer them by measurement, and this is
that material: 26 experiments, 125 raw command outputs, 22 browser captures.

Follows the import procedure in README.md.

  source/     the originating repository verbatim — 78 documents, 28 SVGs,
              8 manifests, plus .source-revision recording the commit
  final/      the SSOT
    document.md   729 lines written from the 29 experiment documents, not
                  concatenated: what was predicted, what was measured, and
                  where the measurement itself was wrong
    evidence/raw    125 outputs, flattened to <experiment>__<file> because
                    the originals collided (01-baseline.txt appeared three
                    times) and the audit only globs the top level
    evidence/meta   one per raw file; command and exitCode are null and the
                    README says why rather than inventing them
    evidence/browser  22 captures
    assets/       three diagrams through techviz
    .techviz/     their VizSpecs

A separate project rather than an addition to keycloak: the B-layer answers
that project's four questions, but the A, C and D layers are about cluster
failure, SSO and operations, and one document.md should hold one subject.
The four question records there can point here through 관계.

Recorded rather than papered over: only three of the 28 diagrams were
remade. The repository forbids hand-drawn SVG and forbids titles inside the
canvas; all 28 originals carry both, so converting them is redrawing, not
reformatting. They stay in source/ and the gap is written into the document.

verify-pipeline.py passes. audit-records.py reports no issues.

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

docs/clean-architecture-backend-template/final/evidence/raw/analysis-finding-a07-f005.txt

@@ -0,0 +1,15 @@
+## 7. P3 — README의 세 가지 사실 오류
+
+| README | 실제 |
+|---|---|
+| :3 패키지 루트 `dev.caskeleton.adapter.identifier` | `dev.caskeleton.adapter.outbound.identifier` (CLAUDE.md:11은 정확) |
+| :59 "Spock 2.4 / **Groovy 4.0** variant" | `spock-core:2.4-groovy-**5.0**` |
+| :64 edge는 `src/build.gradle`의 `allowedProjectDependencies['**adapter-identifier**']`로 허용 | `build.gradle:1416`의 `allowedProjectDependencies`는 리터럴 맵이 아니라 `registry.modules.collectEntries { … }`로 **레지스트리에서 파생**되며, 이 모듈의 키는 `adapter-outbound-identifier`다 |
+
+셋 다 메커니즘 자체는 실재하고 동작한다 — 틀린 것은 이름과 버전이다. **P3.**
+
+## 8. P3 — CLAUDE.md가 대는 두 가드 중 하나는 저장소에 없다
+
+CLAUDE.md:38–39가 금지 사항의 근거로 둘을 든다.
+
+1. ArchUnit `identifier_adapter_does_not_depend_on_other_adapters_or_bootstrap` — **존재한다**(§2, 상수명은 대문자). confirmed.