feat: Remove goal management feature entirely

This major change removes the goal management feature to simplify the plugin
and focus on task continuation functionality.

BREAKING CHANGES:
- Removed goal tools: goal_set, goal_status, goal_done, goal_cancel, goal_validate
- Removed createGoalManagement API
- Removed goal types and storage
- Updated createTaskContinuation to remove goalManagement parameter

Removed files:
- src/tools/goal/ (goal tool implementations)
- packages/goals/ (goal management package)
- src/goal-context-injection.ts
- src/goal/ (goal management implementation)
- tools.ts (goal tools definitions)
- GOAL_IMPLEMENTATION.md
- Goal-related test files

Migration: Use todo-based workflows instead of goal-based workflows.

🤖 Generated with OpenCode

Author: rwese

CHANGELOG.md

@@ -1,5 +1,97 @@
 # Changelog
 
+## [6.0.0] - 2026-01-20
+
+### Breaking Changes
+
+**Goal Management Feature Removed**
+
+This major release removes the goal management feature to simplify the plugin and focus on task continuation functionality.
+
+#### Removed Features
+
+- **Goal Management Tools**: `goal_set`, `goal_status`, `goal_done`, `goal_cancel`, `goal_validate`
+- **Goal Management API**: `createGoalManagement` export
+- **Goal Types**: `Goal`, `GoalManagement`, `GoalManagementOptions`, `GOALS_BASE_PATH`, `GOAL_FILENAME`
+- **Goal Storage**: File-based goal persistence at `~/.local/share/opencode/plugin/agent-loop/`
+- **Goal Context Injection**: Automatic goal context in session prompts
+
+#### Removed Files
+
+- `src/tools/goal/` - Goal tool implementations
+- `packages/goals/` - Goal management package
+- `src/goal-context-injection.ts` - Goal context injection
+- `src/goal/` - Goal management implementation (management.ts, storage.ts, continuation.ts)
+- `tools.ts` - Goal tools definitions
+- `GOAL_IMPLEMENTATION.md` - Goal implementation documentation
+- Goal-related test files in `__tests__/`
+
+#### Updated APIs
+
+**createTaskContinuation:**
+
+```typescript
+// Old signature (with goal management)
+createTaskContinuation(input, options, goalManagement?: GoalManagement)
+
+// New signature (task continuation only)
+createTaskContinuation(input, options)
+```
+
+**Plugin Configuration:**
+
+Goal-related configuration options have been removed. The plugin now focuses solely on task continuation based on todo items.
+
+#### Migration Guide
+
+Users should migrate from goal-based workflows to todo-based workflows:
+
+**Before (Goal-based):**
+
+```typescript
+await goal_set({
+  title: "Implement feature X",
+  done_condition: "Feature X is complete and tested",
+  description: "Detailed description here",
+})
+await goal_done()
+await goal_validate()
+```
+
+**After (Todo-based):**
+
+```typescript
+await todowrite({
+  todos: [
+    {
+      id: "1",
+      content: "Implement feature X",
+      status: "in_progress",
+      priority: "high",
+    },
+  ],
+})
+// ... work on task ...
+await todowrite({
+  todos: [
+    {
+      id: "1",
+      content: "Implement feature X",
+      status: "completed",
+      priority: "high",
+    },
+  ],
+})
+```
+
+#### Benefits
+
+- Simplified plugin architecture
+- Reduced bundle size
+- Clearer focus on task continuation
+- No file system operations for goal storage
+- Easier to maintain and extend
+
 ## [5.1.2] - 2026-01-14
 
 ### Fixed

CONFIGURATION.md

@@ -67,12 +67,12 @@ Logs are written to the configured log file path (default: `~/.local/share/openc
 {
   "timestamp": "2026-01-14T10:30:00.000Z",
   "level": "INFO",
-  "message": "Goal created",
+  "message": "Task continuation injected",
   "data": {
     "sessionID": "session-123",
-    "title": "Complete feature"
+    "incompleteCount": 3
   },
-  "source": "agent-loop-goals"
+  "source": "agent-loop-continuation"
 }
 ```