Fix TypeScript build errors

PHASE2_SUMMARY.md

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+# Phase 2 Summary - Pattern-Based Fixes
+
+## Status: In Progress
+
+### 2.1 JsonValue Type Mismatches 🟡
+**Fixed Files (6 files)**:
+1. `uhem-encoding.service.ts` - Added Prisma import, needs more fixes
+2. `uhem-correction.service.ts` - Added Prisma import
+3. `uhem-projection.service.ts` - Added Prisma import
+4. `defi-module.service.ts` - Added Prisma import
+5. `gdsl-clearing.service.ts` - Added Prisma import
+6. `gsds-contract.service.ts` - Added Prisma import
+
+**Remaining**: ~179 JsonValue errors still need fixes
+
+**Issue**: Need to properly cast `request.field` assignments, not just empty objects
+
+### 2.2 Property Access on Unknown Types ⏳
+**Pending** - ~10 errors in reporting-engine.service.ts
+
+### 2.3 Type Conversion via Unknown ⏳
+**Pending** - ~9 errors in admin controls services
+
+## Current Status
+- Starting Phase 2: 557 errors
+- Current: 557 errors (JsonValue fixes need more work)
+- Files Fixed: 6 files with Prisma imports added
+
+## Next Steps
+
+The JsonValue fixes need to handle:
+1. `request.field` assignments (need casts)
+2. Object literals with nested Record types
+3. Nullable JsonValue fields (need Prisma.JsonNull)
+
+**Recommendation**: Continue with systematic fixes, file by file, ensuring proper casts are applied to all JsonValue assignments.
+