Fix Go module imports and add dynamic Ollama model selection with N8N integration

- Fixed module path from github.com/deepblackcloud/bzzz to github.com/anthonyrawlins/bzzz
- Added dynamic Ollama model detection via /api/tags endpoint
- Implemented intelligent model selection through N8N webhook integration
- Added BZZZ_MODEL_SELECTION_WEBHOOK environment variable support
- Fixed GitHub assignee issue by using valid username instead of peer ID
- Added comprehensive model fallback mechanisms
- Updated all import statements across the codebase
- Removed duplicate systemd service file
- Added sandbox execution environment and type definitions

🤖 Generated with [Claude Code](https://claude.ai/code)

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

pkg/types/task.go

@@ -0,0 +1,35 @@
+package types
+
+import (
+	"time"
+
+	"github.com/anthonyrawlins/bzzz/pkg/hive"
+)
+
+// EnhancedTask extends a basic Task with project-specific context.
+// It's the primary data structure passed between the github, executor,
+// and reasoning components.
+type EnhancedTask struct {
+	// Core task details, originally from the GitHub issue.
+	ID          int64
+	Number      int
+	Title       string
+	Description string
+	State       string
+	Labels      []string
+	Assignee    string
+	CreatedAt   time.Time
+	UpdatedAt   time.Time
+
+	// Bzzz-specific fields parsed from the issue body or labels.
+	TaskType     string
+	Priority     int
+	Requirements []string
+	Deliverables []string
+	Context      map[string]interface{}
+
+	// Hive-integration fields providing repository context.
+	ProjectID  int
+	GitURL     string
+	Repository hive.Repository
+}