fix(db): complete PostgreSQL integration in validation and cleaner services

OrderNumberResolver, validation, and cleaner services had incomplete
PostgreSQL support - they only handled SQL Server and MySQL, causing
PostgreSQL to fall through to MySQL code paths with invalid syntax
(backticks, ? placeholders) and missing schema.table name splitting.

Changes:
- Add PostgreSQL SQL generation ($N params, double-quoted identifiers)
  in OrderNumberResolver, validation-application-service,
  production-input-service, and validation-database
- Add PostgreSQL to database factory functions in validation-database
  and cleaner-application-service
- Add UPPER, LOWER, and 40+ common SQL functions to SQL_KEYWORDS to
  prevent prepareSql() from quoting them as identifiers

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/services/validation/production-input-service.ts

@@ -29,7 +29,7 @@ export async function getSourceNumbersFromInputs(
   const productionIds: string[] = []
   const orderNumbers: string[] = []
   const configManager = ConfigManager.getInstance()
-  const isSqlServer = configManager.getDatabaseType() === 'sqlserver'
+  const dbType = configManager.getDatabaseType()
 
   for (const item of inputs) {
     const type = identifyInputType(item)
@@ -44,7 +44,7 @@ export async function getSourceNumbersFromInputs(
     const contractTableName = getValidationTableName('productionContractData_26年压力表合同数据')
     const batchSize = 2000
 
-    if (isSqlServer) {
+    if (dbType === 'sqlserver') {
       const sql = await import('mssql')
       const allOrderNumbers: string[] = []
 
@@ -71,6 +71,22 @@ export async function getSourceNumbersFromInputs(
         )
       }
 
+      orderNumbers.push(...allOrderNumbers)
+    } else if (dbType === 'postgresql') {
+      const allOrderNumbers: string[] = []
+
+      for (let i = 0; i < productionIds.length; i += batchSize) {
+        const batch = productionIds.slice(i, i + batchSize)
+        const placeholders = batch.map((_, idx) => `$${idx + 1}`).join(',')
+        const contractSql = `
+          SELECT DISTINCT "生产订单号"
+          FROM ${contractTableName}
+          WHERE "总排号" IN (${placeholders})
+        `
+        const contractResult = await dbService.query(contractSql, batch)
+        allOrderNumbers.push(...contractResult.rows.map((row) => row.生产订单号 as string))
+      }
+
       orderNumbers.push(...allOrderNumbers)
     } else {
       const allOrderNumbers: string[] = []