feat(ipuaro): add enum value definitions to initial context

Extract enum declarations with member names and values from TypeScript
AST and display them in the initial LLM context. This allows the LLM
to know valid enum values without making tool calls.

Features:
- Numeric values (Active=1)
- String values (Admin="admin")
- Implicit values (Up, Down)
- Negative numbers (Cold=-10)
- const enum modifier
- export enum modifier
- Long enum truncation (>100 chars)

Adds EnumInfo and EnumMemberInfo interfaces, extractEnum() method in
ASTParser, formatEnumSignature() in prompts.ts, and 17 new unit tests.

packages/ipuaro/ROADMAP.md

@@ -1782,7 +1782,7 @@ export interface ScanResult {
 ## Version 0.24.0 - Rich Initial Context 📋
 
 **Priority:** HIGH
-**Status:** In Progress (2/4 complete)
+**Status:** In Progress (3/4 complete)
 
 Enhance initial context for LLM: add function signatures, interface field types, and enum values. This allows LLM to answer questions about types and parameters without tool calls.
 
@@ -1836,7 +1836,7 @@ Enhance initial context for LLM: add function signatures, interface field types,
 
 **Why:** LLM knows data structure, won't invent fields.
 
-### 0.24.3 - Enum Value Definitions
+### 0.24.3 - Enum Value Definitions ⭐ ✅
 
 **Problem:** LLM only sees `type: Status`
 **Solution:** Show values: `Status { Active=1, Inactive=0, Pending=2 }`
@@ -1852,9 +1852,9 @@ Enhance initial context for LLM: add function signatures, interface field types,
 ```
 
 **Changes:**
-- [ ] Add `EnumInfo` to FileAST with members and values
-- [ ] Update `ASTParser.ts` to extract enum members
-- [ ] Update `formatFileSummary()` to output enum values
+- [x] Add `EnumInfo` to FileAST with members and values
+- [x] Update `ASTParser.ts` to extract enum members
+- [x] Update `formatFileSummary()` to output enum values
 
 **Why:** LLM knows valid enum values.
 
@@ -2077,9 +2077,9 @@ sessions:list             # List<session_id>
 
 ---
 
-**Last Updated:** 2025-12-04
+**Last Updated:** 2025-12-05
 **Target Version:** 1.0.0
 **Current Version:** 0.25.0
-**Next Milestones:** v0.24.0 (Rich Context - 2/4 complete), v0.25.0 (Graph Metrics)
+**Next Milestones:** v0.24.0 (Rich Context - 3/4 complete), v0.25.0 (Graph Metrics)
 
 > **Note:** v0.24.0 and v0.25.0 are required for 1.0.0 release. They enable LLM to answer questions about types, signatures, and architecture without tool calls.