docs(02): add research and validation strategy

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.planning/phases/02-transaction-search-diagrams/02-VALIDATION.md

@@ -0,0 +1,85 @@
+---
+phase: 2
+slug: transaction-search-diagrams
+status: draft
+nyquist_compliant: false
+wave_0_complete: false
+created: 2026-03-11
+---
+
+# Phase 2 — Validation Strategy
+
+> Per-phase validation contract for feedback sampling during execution.
+
+---
+
+## Test Infrastructure
+
+| Property | Value |
+|----------|-------|
+| **Framework** | JUnit 5 + Spring Boot Test + Testcontainers ClickHouse 25.3 |
+| **Config file** | cameleer3-server-app/pom.xml (testcontainers dep), AbstractClickHouseIT base class |
+| **Quick run command** | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT` |
+| **Full suite command** | `mvn clean verify` |
+| **Estimated runtime** | ~45 seconds |
+
+---
+
+## Sampling Rate
+
+- **After every task commit:** Run `mvn test -pl cameleer3-server-app -Dtest=<relevant>IT`
+- **After every plan wave:** Run `mvn clean verify`
+- **Before `/gsd:verify-work`:** Full suite must be green
+- **Max feedback latency:** 45 seconds
+
+---
+
+## Per-Task Verification Map
+
+| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
+|---------|------|------|-------------|-----------|-------------------|-------------|--------|
+| 02-01-01 | 01 | 1 | SRCH-01 | integration | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT#searchByStatus` | ❌ W0 | ⬜ pending |
+| 02-01-02 | 01 | 1 | SRCH-02 | integration | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT#searchByTimeRange` | ❌ W0 | ⬜ pending |
+| 02-01-03 | 01 | 1 | SRCH-03 | integration | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT#searchByDuration` | ❌ W0 | ⬜ pending |
+| 02-01-04 | 01 | 1 | SRCH-04 | integration | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT#searchByCorrelationId` | ❌ W0 | ⬜ pending |
+| 02-01-05 | 01 | 1 | SRCH-05 | integration | `mvn test -pl cameleer3-server-app -Dtest=SearchControllerIT#fullTextSearch` | ❌ W0 | ⬜ pending |
+| 02-01-06 | 01 | 1 | SRCH-06 | integration | `mvn test -pl cameleer3-server-app -Dtest=DetailControllerIT#detailReturnsNestedTree` | ❌ W0 | ⬜ pending |
+| 02-02-01 | 02 | 1 | DIAG-01 | integration | `mvn test -pl cameleer3-server-app -Dtest=DiagramControllerIT#contentHashDedup` | Partial | ⬜ pending |
+| 02-02-02 | 02 | 1 | DIAG-02 | integration | `mvn test -pl cameleer3-server-app -Dtest=DetailControllerIT#detailIncludesDiagramHash` | ❌ W0 | ⬜ pending |
+| 02-02-03 | 02 | 1 | DIAG-03 | integration | `mvn test -pl cameleer3-server-app -Dtest=DiagramRenderControllerIT#renderSvg` | ❌ W0 | ⬜ pending |
+
+*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*
+
+---
+
+## Wave 0 Requirements
+
+- [ ] `SearchControllerIT.java` — stubs for SRCH-01 through SRCH-05
+- [ ] `DetailControllerIT.java` — stubs for SRCH-06, DIAG-02
+- [ ] `DiagramRenderControllerIT.java` — stubs for DIAG-03
+- [ ] `TreeReconstructionTest.java` — unit test for tree rebuild logic (core module)
+- [ ] Schema migration script `02-search-columns.sql` — extends schema for Phase 2 columns
+- [ ] Update `AbstractClickHouseIT.initSchema()` to load both `01-schema.sql` and `02-search-columns.sql`
+
+*Existing infrastructure covers test framework and Testcontainers setup.*
+
+---
+
+## Manual-Only Verifications
+
+| Behavior | Requirement | Why Manual | Test Instructions |
+|----------|-------------|------------|-------------------|
+| SVG visual quality | DIAG-03 | Correct layout/colors need visual inspection | Render a sample diagram, open SVG in browser, verify node colors and layout direction |
+
+---
+
+## Validation Sign-Off
+
+- [ ] All tasks have `<automated>` verify or Wave 0 dependencies
+- [ ] Sampling continuity: no 3 consecutive tasks without automated verify
+- [ ] Wave 0 covers all MISSING references
+- [ ] No watch-mode flags
+- [ ] Feedback latency < 45s
+- [ ] `nyquist_compliant: true` set in frontmatter
+
+**Approval:** pending