remove stale code (#332)

Remove stale RFE workflow code from frontend following the UI refactor
in commit 1540e30. This cleanup eliminates unused API services, type
definitions, and workflow phase constants.

Files removed:
- components/frontend/src/services/api/rfe.ts (270 lines)
- components/frontend/src/types/api/rfe.ts (154 lines)

Files modified:
- Remove RFE exports from API and type index files
- Remove stale RFE types from agentic-session.ts (83 lines)
- Remove workflow phase constants from lib/agents.ts (20 lines)

Build verified: 0 errors, 0 warnings

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

Co-authored-by: Claude <noreply@anthropic.com>

Author: sallyom

components/frontend/src/lib/agents.ts

@@ -139,25 +139,4 @@ function getCategoryForRole(role: string): string {
   if (role.includes("Product") || role.includes("Strategy")) return "Product";
   if (role.includes("Content") || role.includes("Documentation")) return "Content";
   return "Process & Leadership";
-}
-
-export const WORKFLOW_PHASE_LABELS = {
-  pre: "⏳ Pre",
-  ideate: "💡 Ideate",
-  specify: "📝 Specify",
-  plan: "🗂️ Plan",
-  tasks: "✅ Tasks",
-  implement: "🚧 Implement",
-  review: "👁️ Review",
-  completed: "🎉 Completed"
-};
-
-export const WORKFLOW_PHASE_DESCRIPTIONS = {
-  ideate: "Collaboratively ideate and define the high-level RFE in rfe.md",
-  specify: "Create comprehensive specifications from different perspectives",
-  plan: "Generate detailed implementation plans with technical approach",
-  tasks: "Break down features into actionable development tasks",
-  implement: "Start implementation session to begin coding based on tasks",
-  review: "Review and finalize all artifacts before implementation",
-  completed: "All phases complete, artifacts pushed to repository"
-};
+}

components/frontend/src/services/api/index.ts

@@ -7,7 +7,6 @@ export * from './client';
 export * as clusterApi from './cluster';
 export * as projectsApi from './projects';
 export * as sessionsApi from './sessions';
-export * as rfeApi from './rfe';
 export * as githubApi from './github';
 export * as keysApi from './keys';
 export * as repoApi from './repo';

components/frontend/src/services/api/rfe.ts

@@ -177,88 +177,11 @@ export type CreateAgenticSessionRequest = {
 	annotations?: Record<string, string>;
 };
 
-// New types for RFE workflows
-export type WorkflowPhase = "pre" | "ideate" | "specify" | "plan" | "tasks" | "implement" | "review" | "completed";
-
 export type AgentPersona = {
 	persona: string;
 	name: string;
 	role: string;
 	description: string;
 };
 
-export type ArtifactFile = {
-	path: string;
-	name: string;
-	content: string;
-	lastModified: string;
-	size: number;
-	agent?: string;
-	phase?: string;
-};
-
-export type RFESession = {
-	id: string;
-	agentPersona: string; // Agent persona key (e.g., "ENGINEERING_MANAGER")
-	phase: WorkflowPhase;
-	status: string; // "pending", "running", "completed", "failed"
-	startedAt?: string;
-	completedAt?: string;
-	result?: string;
-	cost?: number;
-};
-
-export type RFEWorkflow = {
-	id: string;
-	title: string;
-	description: string;
-	branchName?: string; // Platform-generated feature branch name
-  currentPhase?: WorkflowPhase; // derived in UI
-  status?: "active" | "completed" | "failed" | "paused"; // derived in UI
-  // New CRD-aligned repo fields
-  umbrellaRepo?: GitRepository; // required in CRD, but optional in API reads
-  supportingRepos?: GitRepository[];
-  workspacePath?: string; // CRD-aligned optional path
-  parentOutcome?: string; // Optional parent Jira Outcome key (e.g., RHASTRAT-456)
-  agentSessions?: RFESession[];
-  artifacts?: ArtifactFile[];
-	createdAt: string;
-	updatedAt: string;
-  phaseResults?: { [phase: string]: PhaseResult };
-  jiraLinks?: Array<{ path: string; jiraKey: string }>;
-};
-
-export type CreateRFEWorkflowRequest = {
-	title: string;
-	description: string;
-  umbrellaRepo: GitRepository;
-  supportingRepos?: GitRepository[];
-  workspacePath?: string;
-  parentOutcome?: string; // Optional parent Jira Outcome key (e.g., RHASTRAT-456)
-};
-
-export type PhaseResult = {
-	phase: string;
-	status: string; // "completed", "in_progress", "failed"
-	agents: string[]; // agents that worked on this phase
-	artifacts: string[]; // artifact paths created in this phase
-	summary: string;
-	startedAt: string;
-	completedAt?: string;
-	metadata?: { [key: string]: unknown };
-};
-
-export type RFEWorkflowStatus = {
-	phase: WorkflowPhase;
-	agentProgress: {
-		[agentPersona: string]: {
-			status: AgenticSessionPhase;
-			sessionName?: string;
-			completedAt?: string;
-		};
-	};
-	artifactCount: number;
-	lastActivity: string;
-};
-
 export type { Project } from "@/types/project";