feat(agentic): add RFC model aliases

Co-Authored-By: Virgil <virgil@lethean.io>

pkg/agentic/plan.go

@@ -64,6 +64,9 @@ type PlanTask struct {
 	LineRef     int    `json:"line_ref,omitempty"`
 }
 
+// task := agentic.Task{ID: "1", Title: "Review imports"}
+type Task = PlanTask
+
 // checkpoint := agentic.PhaseCheckpoint{Note: "Build passes", CreatedAt: "2026-03-31T00:00:00Z"}
 type PhaseCheckpoint struct {
 	Note      string         `json:"note"`

pkg/agentic/prompt_version.go

@@ -16,6 +16,32 @@ type PromptVersionOutput struct {
 	Snapshot  PromptVersionSnapshot `json:"snapshot"`
 }
 
+// prompt := agentic.Prompt{Name: "coding", Category: "workspace"}
+type Prompt struct {
+	ID           int            `json:"id"`
+	Name         string         `json:"name"`
+	Category     string         `json:"category,omitempty"`
+	Description  string         `json:"description,omitempty"`
+	SystemPrompt string         `json:"system_prompt,omitempty"`
+	UserTemplate string         `json:"user_template,omitempty"`
+	Variables    map[string]any `json:"variables,omitempty"`
+	Model        string         `json:"model,omitempty"`
+	ModelConfig  map[string]any `json:"model_config,omitempty"`
+	IsActive     bool           `json:"is_active,omitempty"`
+}
+
+// version := agentic.PromptVersion{Name: "coding", Version: 3}
+type PromptVersion struct {
+	ID           int            `json:"id"`
+	PromptID     int            `json:"prompt_id"`
+	Version      int            `json:"version"`
+	SystemPrompt string         `json:"system_prompt,omitempty"`
+	UserTemplate string         `json:"user_template,omitempty"`
+	Variables    map[string]any `json:"variables,omitempty"`
+	CreatedBy    string         `json:"created_by,omitempty"`
+	CreatedAt    string         `json:"created_at,omitempty"`
+}
+
 // input := agentic.PromptVersionInput{Workspace: "/srv/.core/workspace/core/go-io/task-42"}
 type PromptVersionInput struct {
 	Workspace string `json:"workspace"`