Fix TypeScript build errors

PHASE2_PROGRESS.md

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+# Phase 2 Progress - Pattern-Based Fixes
+
+## Status: In Progress
+
+### 2.1 JsonValue Type Mismatches ✅ (Started)
+**Fixed Files**:
+1. `uhem-encoding.service.ts` - Added Prisma import and casts for 5 JsonValue fields
+2. `uhem-correction.service.ts` - Added Prisma import and cast for metadata
+3. `uhem-projection.service.ts` - Added Prisma import and cast for projectionData
+4. `defi-module.service.ts` - Added Prisma import and cast for moduleConfig
+5. `gdsl-clearing.service.ts` - Added Prisma import and cast for clearingData
+6. `gsds-contract.service.ts` - Added Prisma import and cast for contractTerms
+
+**Pattern Applied**:
+- Added `import { Prisma } from '@prisma/client';`
+- Cast empty objects: `{} as Prisma.InputJsonValue`
+- Cast object literals: `{ ... } as Prisma.InputJsonValue`
+
+**Errors Fixed**: ~6-8 errors
+
+### 2.2 Property Access on Unknown Types ⏳
+**Pending**
+
+### 2.3 Type Conversion via Unknown ⏳
+**Pending**
+
+## Current Status
+- Starting Phase 2: 557 errors
+- Current: Checking...
+
+## Next Steps
+1. Continue fixing JsonValue mismatches in more files
+2. Fix property access on unknown types
+3. Fix type conversions via unknown
+