docs: update PROJECT_STATE.md - Task 6 complete (CLI Framework Setup)

- Mark Task 6 (CLI Framework Setup) as complete
- Update completion matrix: CLI Framework 100%, Testing ~30%
- Update overall progress to ~45%
- Mark Milestone 1 (Foundation) as COMPLETE
- Update sprint tracking and roadmap

PROJECT_STATE.md

@@ -2,8 +2,8 @@
 
 > **Purpose**: Enable seamless continuation of development by any agent/LLM across sessions
 > 
-> **Last Updated**: 2024-06-22 (Session 2)
-> **Current Status**: Implementation In Progress - Tasks 1-5 Complete
+> **Last Updated**: 2024-06-22 (Session 3)
+> **Current Status**: Implementation In Progress - Tasks 1-6 Complete
 > **Phase**: MVP Development (Phase 1)
 
 ---
@@ -27,9 +27,10 @@
 ✅ **Task 3**: Configuration management (`pkg/config/config.go`)
 ✅ **Task 4**: Error handling framework (`internal/errors/`) + tests passing
 ✅ **Task 5**: SSH client (`pkg/ssh/`) + tests passing
+✅ **Task 6**: CLI Framework Setup - Cobra root, version, completion (`cmd/hostkeeper/`)
 
 ### What Needs to Happen Next
-🔄 **Task 6**: CLI Framework Setup (Cobra commands in `cmd/hostkeeper/`)
+🔄 **Task 7+**: CLI commands (add, list, connect, etc.)
 🔄 Build and test core features
 🔄 Prepare MVP release
 
@@ -47,12 +48,13 @@
 | **Config** | ✅ 100% | Cross-platform config management |
 | **Errors** | ✅ 100% | AppError + ConnectionError + SSH error handler |
 | **SSH Client** | ✅ 100% | Password + key auth, Execute, Connect/Close |
-| **CLI Commands** | 🔲 0% | User interface commands |
+| **CLI Framework** | ✅ 100% | Cobra root, version, completion commands |
+| **CLI Commands** | 🔲 0% | add, list, connect subcommands |
 | **TUI** | 🔲 0% | Terminal user interface |
-| **Testing** | 🔲 0% | Test suite and integration |
+| **Testing** | 🟡 30% | Error + SSH tests passing |
 | **Documentation** | 🔲 0% | Usage guides and API docs |
 
-### Overall Progress: **~40% Complete** (Tasks 1-5 done)
+### Overall Progress: **~45% Complete** (Tasks 1-6 done)
 
 ---
 
@@ -103,14 +105,15 @@
   - `pkg/ssh/auth.go` — Password/key/both auth, default key discovery
   - `test/ssh/ssh_test.go` — 4 test functions, all passing
 
-#### 🔲 Task 6: CLI Framework Setup
-- **Status**: Not Started
+#### ✅ Task 6: CLI Framework Setup
+- **Status**: ✅ Completed
 - **Priority**: CRITICAL
-- **Estimated Time**: 1-2 hours
-- **Dependencies**: Task 1 complete
 - **Deliverables**: Cobra framework, basic commands
-- **Files to Create**:
-  - `cmd/hostkeeper/*.go`
+- **Files Created**:
+  - `cmd/hostkeeper/main.go` — Entry point with Execute() function
+  - `cmd/hostkeeper/root.go` — Root command with PersistentPreRunE config init
+  - `cmd/hostkeeper/completion.go` — Shell completion (bash/zsh/fish/powershell)
+  - Includes `version` subcommand and `-v/--verbose`, `--debug` flags
 
 #### 🔲 Task 7-14: Remaining Tasks
 - **Status**: Not Started
@@ -121,7 +124,7 @@
 ## 🗺️ Development Roadmap
 
 ### Current Week Focus
-**Target**: Complete Tasks 1-6 (Foundation + Core Features)
+**Target**: Complete Tasks 7+ (Core CLI Commands)
 
 ### This Sprint
 - [x] Project setup and dependencies
@@ -129,7 +132,7 @@
 - [x] Configuration management
 - [x] Error handling framework
 - [x] SSH client implementation
-- [ ] CLI framework setup
+- [x] CLI framework setup
 
 ### Next Sprint
 - [ ] CLI commands (add, list, connect)
@@ -285,7 +288,7 @@ go test ./... -watch
 
 ### Current Test Coverage
 - **Target**: 80%+ coverage
-- **Current**: 0% (no tests yet)
+- **Current**: ~30% (error handling + SSH client tests passing)
 - **Priority**: Write tests first (TDD approach)
 
 ---
@@ -493,7 +496,7 @@ cat go.mod
 - **Current Phase**: Implementation
 
 ### Milestone Tracking
-- [~] Milestone 1: Foundation (Tasks 1-6) - Week 1 (Tasks 1-3 done)
+- [x] Milestone 1: Foundation (Tasks 1-6) - Week 1 ✅ COMPLETE
 - [ ] Milestone 2: Core Features (Tasks 7-10) - Week 2-3
 - [ ] Milestone 3: Polish & Release (Tasks 11-14) - Week 4