fix: resolve ESLint errors in performance modules

- Replace 'any' types with proper type annotations
- Mark unused parameters with underscore prefix
- Fix function type definitions to avoid TypeScript/ESLint conflicts

🤖 Generated with Claude Code (claude.ai/code)

Author: DaMandal0rian

packages/indexer-common/src/performance/circuit-breaker.ts

@@ -254,7 +254,7 @@ export class CircuitBreaker {
   /**
    * Create a wrapped function with circuit breaker protection
    */
-  wrap<T extends (...args: any[]) => Promise<any>>(
+  wrap<T extends (...args: never[]) => Promise<unknown>>(
     fn: T,
     fallback?: (...args: Parameters<T>) => ReturnType<T> | Promise<Awaited<ReturnType<T>>>,
   ): T {

packages/indexer-common/src/performance/concurrent-reconciler.ts

@@ -290,9 +290,9 @@ export class ConcurrentReconciler {
    */
   private async reconcileDeploymentInternal(
     deployment: SubgraphDeploymentID,
-    activeAllocations: Allocation[],
-    network: Network,
-    operator: Operator,
+    _activeAllocations: Allocation[],
+    _network: Network,
+    _operator: Operator,
   ): Promise<void> {
     // Implementation would include actual reconciliation logic
     // This is a placeholder for the core logic
@@ -336,11 +336,11 @@ export class ConcurrentReconciler {
    */
   private async processAllocationDecision(
     decision: AllocationDecision,
-    activeAllocations: Allocation[],
-    epoch: number,
-    maxAllocationEpochs: number,
-    network: Network,
-    operator: Operator,
+    _activeAllocations: Allocation[],
+    _epoch: number,
+    _maxAllocationEpochs: number,
+    _network: Network,
+    _operator: Operator,
   ): Promise<void> {
     const startTime = Date.now()
 
@@ -416,13 +416,13 @@ export class ConcurrentReconciler {
   /**
    * Get reconciliation metrics
    */
-  getMetrics(): Readonly<ReconciliationMetrics> {
+  getMetrics(): Readonly<ReconciliationMetrics & { cacheHitRate: number; circuitBreakerState: string; queueSize: number }> {
     return {
       ...this.metrics,
       cacheHitRate: this.cache?.getHitRate() || 0,
       circuitBreakerState: this.circuitBreaker?.getState() || 'N/A',
       queueSize: this.priorityQueue?.size() || 0,
-    } as any
+    }
   }
 
   /**

packages/indexer-common/src/performance/network-cache.ts

@@ -23,7 +23,7 @@ interface CacheMetrics {
  * High-performance caching layer for network data with TTL and LRU eviction
  */
 export class NetworkDataCache {
-  private cache = new Map<string, CachedEntry<any>>()
+  private cache = new Map<string, CachedEntry<unknown>>()
   private readonly ttl: number
   private readonly maxSize: number
   private readonly enableMetrics: boolean