Fix JSON formatting issue in config post-processing

- Replace PowerShell JSON round-trip with text-based regex replacement
- Preserves original CLI-generated formatting
- Fixes GetBooks and GetPublisher operations using pattern matching
- Regenerate both MsSql and DwSql configs with proper formatting
- Update configuration test snapshots

Author: souvikghosh04

config-generators/config-generator.ps1

@@ -74,14 +74,13 @@ foreach($databaseType in $databaseTypes){
     # Post-process MsSql and DwSql configs to fix stored procedure GraphQL operations
     # The CLI currently ignores --graphql.operation parameter for stored procedures,
     # defaulting them to 'mutation'. We manually fix specific procedures that should be 'query'.
+    # Using text-based replacement to preserve original JSON formatting.
     if($databaseType -eq "mssql" -or $databaseType -eq "dwsql"){
-        $configContent = Get-Content $configFile -Raw | ConvertFrom-Json;
-        if($configContent.entities.GetBooks){
-            $configContent.entities.GetBooks.graphql.operation = "query";
-        }
-        if($configContent.entities.GetPublisher){
-            $configContent.entities.GetPublisher.graphql.operation = "query";
-        }
-        $configContent | ConvertTo-Json -Depth 100 | Set-Content $configFile -Encoding UTF8;
+        $configContent = Get-Content $configFile -Raw;
+        # Fix GetBooks operation within its entity block
+        $configContent = $configContent -replace '("GetBooks"[\s\S]*?"graphql"[\s\S]*?"operation":\s*)"mutation"', '$1"query"';
+        # Fix GetPublisher operation within its entity block
+        $configContent = $configContent -replace '("GetPublisher"[\s\S]*?"graphql"[\s\S]*?"operation":\s*)"mutation"', '$1"query"';
+        Set-Content $configFile $configContent -Encoding UTF8 -NoNewline;
     }
 }