feat: implement edit and delete host commands

- Add edit command with flag-based and interactive update modes
- Add delete command with confirmation prompt and --force flag
- Include delete alias 'rm' for convenience
- Add comprehensive tests for both commands
- Update project state documentation

PROJECT_STATE.md

@@ -2,7 +2,7 @@
 
 > **Purpose**: Enable seamless continuation of development by any agent/LLM across sessions
 > 
-> **Last Updated**: 2024-06-23 (Session 5)
+> **Last Updated**: 2024-06-23 (Session 6)
 > **Current Status**: Implementation In Progress - Tasks 1-8 Complete
 > **Phase**: MVP Development (Phase 1)
 
@@ -33,7 +33,8 @@
 ✅ **Bug Fix**: Fixed deadlock in JSON storage (RLock within Lock)
 
 ### What Needs to Happen Next
-🔄 **Task 10+**: Edit/remove commands, TUI implementation
+🔄 **Task 10**: TUI implementation (Bubble Tea)
+🔄 **Task 11**: Export/Import commands
 🔄 Build and test core features
 🔄 Prepare MVP release
 
@@ -52,12 +53,12 @@
 | **Errors** | ✅ 100% | AppError + ConnectionError + SSH error handler |
 | **SSH Client** | ✅ 100% | Password + key auth, Execute, Connect/Close |
 | **CLI Framework** | ✅ 100% | Cobra root, version, completion commands |
-| **CLI Commands** | 🟡 40% | add + list + connect commands done; edit/remove pending |
+| **CLI Commands** | 🟡 60% | add + list + connect + edit + delete commands done |
 | **TUI** | 🔲 0% | Terminal user interface |
-| **Testing** | 🟡 45% | Error + SSH + add + list + connect tests passing |
+| **Testing** | 🟡 50% | Error + SSH + add + list + connect + edit + delete tests passing |
 | **Documentation** | 🔲 0% | Usage guides and API docs |
 
-### Overall Progress: **~60% Complete** (Tasks 1-9 done)
+### Overall Progress: **~65% Complete** (Tasks 1-9 + edit/delete done)
 
 ---
 
@@ -142,6 +143,22 @@
   - `cmd/hostkeeper/connect.go` — Connect command with native SSH (default) and direct Go SSH (--direct) modes
   - `cmd/hostkeeper/connect_test.go` — Tests for command existence, flags, and SSH arg building
 
+#### ✅ Edit Host Command
+- **Status**: ✅ Completed
+- **Priority**: HIGH
+- **Deliverables**: Edit existing SSH host configurations
+- **Files Created**:
+  - `cmd/hostkeeper/edit.go` — Edit command with flag-based and interactive modes
+  - `cmd/hostkeeper/edit_test.go` — Tests for command existence and flags
+
+#### ✅ Delete Host Command
+- **Status**: ✅ Completed
+- **Priority**: HIGH
+- **Deliverables**: Delete SSH hosts with confirmation prompt
+- **Files Created**:
+  - `cmd/hostkeeper/delete.go` — Delete command with --force flag to skip confirmation
+  - `cmd/hostkeeper/delete_test.go` — Tests for command existence, alias, and flags
+
 #### 🔲 Task 10-14: Remaining Tasks
 - **Status**: Not Started
 - **Details**: See `docs/plans/2024-06-22-hostkeeper-implementation.md`
@@ -163,11 +180,13 @@
 - [x] Add host command
 - [x] List hosts command
 - [x] Connect host command
+- [x] Edit host command
+- [x] Delete host command
 
 ### Next Sprint
-- [ ] CLI commands (edit, remove)
-- [ ] Basic TUI implementation
+- [ ] TUI implementation (Bubble Tea)
 - [ ] Export/import functionality
+- [ ] Key management commands
 
 ### Final Sprint
 - [ ] Testing and integration
@@ -528,7 +547,8 @@ cat go.mod
 ### Milestone Tracking
 - [x] Milestone 1: Foundation (Tasks 1-6) - Week 1 ✅ COMPLETE
 - [x] Task 7-9: Add, List, Connect commands ✅ COMPLETE
-- [ ] Milestone 2: Core Features (Tasks 7-10) - Week 2-3 (80% complete)
+- [x] Edit & Delete commands ✅ COMPLETE
+- [ ] Milestone 2: Core Features (Tasks 7-10) - Week 2-3 (85% complete)
 - [ ] Milestone 3: Polish & Release (Tasks 11-14) - Week 4
 
 ---