fix(ci): fix E2E test and Windows npm install failures

**E2E Test Fix (TestE2E_InspectQuarantined):**
- Fixed type assertion for mcp.TextContent in quarantine inspection test
- Test was only checking for *mcp.TextContent (pointer) but content can be value type
- Added value type check consistent with debug logging (lines 1073-1078)

**Windows CI Fix:**
- Added retry logic for npm ci on Windows using nick-fields/retry-action@v3
- Windows has intermittent EPERM errors during npm cleanup
- 3 retry attempts with 5s wait and --prefer-offline flag
- Only applies to Windows matrix (Unix uses standard npm ci)

**Testing:**
- Verified TestE2E_InspectQuarantined passes locally
- Windows npm install will now retry on permission errors

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

Co-Authored-By: Claude <noreply@anthropic.com>

Author: Dumbris

.github/workflows/unit-tests.yml

@@ -171,7 +171,17 @@ jobs:
         with:
           node-version: '20'
 
-      - name: Install frontend dependencies
+      - name: Install frontend dependencies (Windows)
+        if: matrix.os == 'windows-latest'
+        uses: nick-fields/retry-action@v3
+        with:
+          timeout_minutes: 10
+          max_attempts: 3
+          retry_wait_seconds: 5
+          command: cd frontend && npm ci --prefer-offline
+
+      - name: Install frontend dependencies (Unix)
+        if: matrix.os != 'windows-latest'
         run: cd frontend && npm ci
 
       - name: Build frontend

internal/server/e2e_test.go

@@ -1070,8 +1070,11 @@ func TestE2E_InspectQuarantined(t *testing.T) {
 	// Verify the result contains information about the tools
 	var resultText string
 	for _, content := range inspectResult.Content {
+		// Handle both pointer and value types
 		if textContent, ok := content.(*mcp.TextContent); ok {
 			resultText += textContent.Text
+		} else if textContent, ok := content.(mcp.TextContent); ok {
+			resultText += textContent.Text
 		}
 	}
 	assert.Contains(t, resultText, "test_tool_1", "Result should mention test_tool_1")