…sses

- Replace generateInterfaceIds.js with addInterfaceIds.ts utility
- Add interface IDs as static properties on Typechain factory classes
- Export utility functions via src/utils.ts for programmatic use
- Add ts-node dependency to run TypeScript build scripts
- Remove separate interfaceIds.ts constants file

Address Copilot review feedback for PR 1240:
- Replace magic numbers with named constants for better readability
- Replace fragile regex-based JSON parsing with Function constructor
  for more robust ABI parsing that handles complex TypeScript syntax

Add validation and improve code safety:
- Add explicit justification comments for Function constructor usage
- Add validation to ensure regex replacement succeeds before writing file
- Fix ESLint warning by using const instead of let for content variable
- Return false and log warning if metadata injection pattern not found

…n fuzz test

The test was failing when fuzzer generated inputs that left less than
MIN_DELEGATION shares after undelegating but more than 0.

Added constraint to ensure after undelegation either:
- All tokens are undelegated (remaining = 0), which is valid, OR
- At least MIN_DELEGATION remains, which is the minimum required

The root cause: The contract correctly enforces that delegators must
either fully exit (0 shares) or maintain at least MIN_DELEGATION shares.
The test was missing this constraint, allowing the fuzzer to generate
invalid intermediate amounts like 0.95e18 shares remaining.

Fixes the intermittent CI failure on fuzzing seed 0xd5262092.

- Extract indentation from existing code instead of hardcoding 2 spaces
- Track and report processing failures separately from skipped files
- Return null from addInterfaceIdToFactory on errors instead of false
- Throw error if any files failed processing to fail the build
- Change warning to error for pattern match failures