docs(phase-1): add validation strategy

.planning/phases/01-foundation/01-VALIDATION.md

@@ -0,0 +1,85 @@
+---
+phase: 1
+slug: foundation
+status: draft
+nyquist_compliant: false
+wave_0_complete: false
+created: 2026-04-04
+---
+
+# Phase 1 — Validation Strategy
+
+> Per-phase validation contract for feedback sampling during execution.
+
+---
+
+## Test Infrastructure
+
+| Property | Value |
+|----------|-------|
+| **Framework** | go test (stdlib) + testify v1.x assertions |
+| **Config file** | none — Wave 0 installs |
+| **Quick run command** | `go test ./... -short` |
+| **Full suite command** | `go test ./... -v -count=1` |
+| **Estimated runtime** | ~5 seconds |
+
+---
+
+## Sampling Rate
+
+- **After every task commit:** Run `go test ./... -short`
+- **After every plan wave:** Run `go test ./... -v -count=1`
+- **Before `/gsd:verify-work`:** Full suite must be green
+- **Max feedback latency:** 10 seconds
+
+---
+
+## Per-Task Verification Map
+
+| Task ID | Plan | Wave | Requirement | Test Type | Automated Command | File Exists | Status |
+|---------|------|------|-------------|-----------|-------------------|-------------|--------|
+| 01-01-01 | 01 | 0 | CORE-02 | unit | `go test ./pkg/provider/...` | ❌ W0 | ⬜ pending |
+| 01-01-02 | 01 | 1 | CORE-02,PROV-10 | unit | `go test ./pkg/provider/...` | ❌ W0 | ⬜ pending |
+| 01-02-01 | 02 | 1 | STOR-01,STOR-02,STOR-03 | unit | `go test ./pkg/storage/...` | ❌ W0 | ⬜ pending |
+| 01-03-01 | 03 | 1 | CORE-01,CORE-06 | unit | `go test ./pkg/engine/...` | ❌ W0 | ⬜ pending |
+| 01-03-02 | 03 | 1 | CORE-04 | unit | `go test ./pkg/engine/...` | ❌ W0 | ⬜ pending |
+| 01-03-03 | 03 | 1 | CORE-05 | unit | `go test ./pkg/engine/...` | ❌ W0 | ⬜ pending |
+| 01-04-01 | 04 | 2 | CLI-01..05 | integration | `go test ./cmd/...` | ❌ W0 | ⬜ pending |
+| 01-04-02 | 04 | 2 | INPUT-01 | integration | `go build ./... && ./keyhunter scan path testdata/` | ❌ W0 | ⬜ pending |
+
+*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*
+
+---
+
+## Wave 0 Requirements
+
+- [ ] `go.mod` + `go.sum` — module initialization with all Phase 1 dependencies
+- [ ] `pkg/provider/registry_test.go` — stubs for YAML loading, validation, pattern matching
+- [ ] `pkg/storage/db_test.go` — stubs for SQLite CRUD, AES-256 encryption roundtrip
+- [ ] `pkg/engine/scanner_test.go` — stubs for pipeline stages (keyword, regex, entropy)
+- [ ] `cmd/keyhunter/main_test.go` — stubs for CLI command tree
+- [ ] `testdata/` directory with sample files containing known test patterns
+- [ ] `testify` assertion library — `go get github.com/stretchr/testify`
+
+*If none: "Existing infrastructure covers all phase requirements."*
+
+---
+
+## Manual-Only Verifications
+
+| Behavior | Requirement | Why Manual | Test Instructions |
+|----------|-------------|------------|-------------------|
+| Config persists across sessions | CLI-02,CLI-03 | Requires filesystem state between runs | Run `keyhunter config init`, restart, verify `~/.keyhunter.yaml` exists |
+
+---
+
+## 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 < 10s
+- [ ] `nyquist_compliant: true` set in frontmatter
+
+**Approval:** pending