fix: Add explicit type annotations to resolve TypeScript errors

- Add type annotations to array methods in dora-metrics.ts
- Add return type annotation to map function in trend-analysis.ts
- Fix implicit 'any' type errors for CI/CD type checking

This resolves all TypeScript compilation errors in GitHub Actions.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: ismoilovdevml

src/lib/dora-metrics.ts

@@ -128,19 +128,19 @@ export async function calculateDoraMetrics(
       },
     });
 
-    const successfulDeployments = deployments.filter(d => d.status === 'success');
-    const failedDeployments = deployments.filter(d => d.status === 'failed');
+    const successfulDeployments = deployments.filter((d) => d.status === 'success');
+    const failedDeployments = deployments.filter((d) => d.status === 'failed');
 
     const daysDiff = Math.max(1, (endDate.getTime() - startDate.getTime()) / (1000 * 60 * 60 * 24));
     const deploymentsPerDay = deployments.length / daysDiff;
 
     // Calculate lead time for changes (commit to deployment time)
     const leadTimes = successfulDeployments
-      .filter(d => d.duration)
-      .map(d => d.duration!);
+      .filter((d) => d.duration)
+      .map((d) => d.duration!);
 
     const avgLeadTime = leadTimes.length > 0
-      ? leadTimes.reduce((sum, val) => sum + val, 0) / leadTimes.length
+      ? leadTimes.reduce((sum: number, val: number) => sum + val, 0) / leadTimes.length
       : 0;
 
     const medianLeadTime = calculateMedian(leadTimes);
@@ -161,11 +161,11 @@ export async function calculateDoraMetrics(
     });
 
     const recoveryTimes = incidents
-      .filter(i => i.duration)
-      .map(i => i.duration!);
+      .filter((i) => i.duration)
+      .map((i) => i.duration!);
 
     const avgMttr = recoveryTimes.length > 0
-      ? recoveryTimes.reduce((sum, val) => sum + val, 0) / recoveryTimes.length
+      ? recoveryTimes.reduce((sum: number, val: number) => sum + val, 0) / recoveryTimes.length
       : 0;
 
     // Calculate change failure rate

src/lib/trend-analysis.ts

@@ -110,7 +110,7 @@ export async function getTrendAnalysis(
       take: limit,
     });
 
-    const points: TrendPoint[] = data.map((d) => ({
+    const points: TrendPoint[] = data.map((d): TrendPoint => ({
       timestamp: d.timestamp,
       value: d.value,
       metadata: d.metadata as Record<string, unknown>,