feat: Lifecycle hardening (#2)

* test(S-04): add install integration tests

- 38 tests covering C-07 (InstallerNew), C-08 (InstallerInstall), C-12 (RunInstall)
- All tests pass (brownfield — existing implementation satisfies contracts)

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

* chore(S-04): mark install slice complete

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

* test(S-05): add check integration tests

- Tests for C-09 (InstallerCheck) and C-13 (RunCheck)
- Uses corrected TD-4 signatures (verify bool, contentFS fs.FS)
- Tests fail to compile pre-implementation (expected TDD behavior)

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

* feat(S-05): implement check with SHA-256 verification (TD-4)

- Update Check signature: add verify bool and contentFS fs.FS params
- Update RunCheck signature: add contentFS fs.FS param
- Add ParseVerifyFlag for --verify boolean flag
- Add SHA-256 content hash comparison in verify mode
- Update cli.go call site to pass contentFS
- Fix present count: empty files count as present
- 52 tests passing (31 Check + 21 RunCheck)

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

* chore(S-05): mark check slice complete

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

* test(S-06): add uninstall integration tests

- Tests for C-10 (InstallerUninstall) and C-14 (RunUninstall)
- Uses corrected TD-3 signature (scope parameter)
- Tests fail to compile pre-implementation (expected TDD behavior)

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

* feat(S-06): implement uninstall with conflict artifact removal (TD-3)

- Update Uninstall signature: add scope parameter
- Add asymmetric conflict artifact removal (CLAUDE_GREENLIGHT.md, CLAUDE.md.backup)
- Update RunUninstall to pass scope through
- Allow idempotent duplicate scope flags in ParseScope
- 28 tests passing (16 Uninstall + 12 RunUninstall)

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

* chore(S-06): mark uninstall slice complete

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

* test: add S-07 CLI dispatch tests (C-15) — expected compile failure

Tests use corrected TD-2 signature: Run(args, contentFS, stdout io.Writer).
Current code has Run(args, contentFS) — implementation will fix.

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

* feat: implement S-07 CLI dispatch (TD-2 + FR-8.1)

- cli.Run now accepts io.Writer parameter (TD-2)
- main.go prints fs.Sub error to stderr before exit (FR-8.1)
- Fix test to check correct asymmetric CLAUDE.md path for local scope
- 22 tests passing, 0 security findings

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

* chore: mark S-07 complete — all 7/7 slices done

228 tests passing, 0 failing, 0 security findings.
All design decisions (TD-1 through TD-4) and FR-8.1 implemented.

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

* chore: update readme

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: juliantellez

.greenlight/STATE.md

@@ -12,22 +12,22 @@ Mode: yolo
 | S-01 | Version | complete | 7 | 0 | none |
 | S-02 | Flag Parsing | complete | 33 | 0 | none |
 | S-03 | Conflict Handling | complete | 31 | 0 | none |
-| S-04 | Install | pending | 0 | 0 | S-01, S-02, S-03 |
-| S-05 | Check | pending | 0 | 0 | S-02, S-04 |
-| S-06 | Uninstall | pending | 0 | 0 | S-02, S-04 |
-| S-07 | CLI Dispatch | pending | 0 | 0 | S-01, S-04, S-05, S-06 |
+| S-04 | Install | complete | 55 | 0 | S-01, S-02, S-03 |
+| S-05 | Check | complete | 52 | 0 | S-02, S-04 |
+| S-06 | Uninstall | complete | 28 | 0 | S-02, S-04 |
+| S-07 | CLI Dispatch | complete | 22 | 0 | S-01, S-04, S-05, S-06 |
 
-Progress: [███░░░░░░░] 3/7 slices
+Progress: [██████████] 7/7 slices
 
 ## Current
 
-Slice: S-03 — Conflict Handling
+Slice: S-07 — CLI Dispatch
 Step: complete
-Last activity: 2026-02-08 — S-03 complete (31 tests, 0 security findings)
+Last activity: 2026-02-08 — S-07 complete (22 tests, 0 security findings)
 
 ## Test Summary
 
-Total: 71 passing, 0 failing, 0 security
+Total: 228 passing, 0 failing, 0 security
 Last run: 2026-02-08
 
 ## Decisions

README.md

@@ -6,6 +6,10 @@
 
 TDD-first development system for [Claude Code](https://docs.anthropic.com/en/docs/claude-code). Tests are the source of truth. Green means done. Security is built in, not bolted on.
 
+<img width="613" height="434" alt="Screenshot 2026-02-08 at 08 52 11" src="https://github.com/user-attachments/assets/145e1553-7b4b-48d1-a77d-a2052c60d3d1" />
+
+<img width="1470" height="671" alt="Screenshot 2026-02-08 at 08 50 32" src="https://github.com/user-attachments/assets/5a33ab58-e576-4a80-8a88-614b2e45ea46" />
+
 ## Quick Start
 
 ```bash

internal/cli/cli.go

@@ -4,15 +4,13 @@ import (
 	"fmt"
 	"io"
 	"io/fs"
-	"os"
 
 	"github.com/atlantic-blue/greenlight/internal/cmd"
 )
 
 // Run dispatches to the appropriate subcommand based on args.
 // contentFS provides the embedded source content.
-func Run(args []string, contentFS fs.FS) int {
-	stdout := os.Stdout
+func Run(args []string, contentFS fs.FS, stdout io.Writer) int {
 
 	if len(args) == 0 {
 		printUsage(stdout)
@@ -25,7 +23,7 @@ func Run(args []string, contentFS fs.FS) int {
 	case "uninstall":
 		return cmd.RunUninstall(args[1:], stdout)
 	case "check":
-		return cmd.RunCheck(args[1:], stdout)
+		return cmd.RunCheck(args[1:], contentFS, stdout)
 	case "version":
 		return cmd.RunVersion(stdout)
 	case "help", "--help", "-h":