fix(mssql): rename engine from sqlserver to mssql

Change the engine identifier from "sqlserver" to "mssql" for consistency
with the package naming and industry conventions.

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

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

Author: claude

examples/authors/sqlc.yaml

@@ -46,7 +46,7 @@ sql:
 - name: sqlserver
   schema: sqlserver/schema.sql
   queries: sqlserver/query.sql
-  engine: sqlserver
+  engine: mssql
   database:
     uri: "sqlserver://sa:MySecretPassword1!@localhost:1433?database=master"
   gen:

internal/compiler/engine.go

@@ -121,10 +121,10 @@ func NewCompiler(conf config.SQL, combo config.CombinedSettings, parserOpts opts
 
 		// MSSQL only supports database-only mode
 		if conf.Database == nil {
-			return nil, fmt.Errorf("sqlserver engine requires database configuration")
+			return nil, fmt.Errorf("mssql engine requires database configuration")
 		}
 		if conf.Database.URI == "" && !conf.Database.Managed {
-			return nil, fmt.Errorf("sqlserver engine requires database.uri or database.managed")
+			return nil, fmt.Errorf("mssql engine requires database.uri or database.managed")
 		}
 		c.databaseOnlyMode = true
 		// Create the MSSQL analyzer (implements Analyzer interface)

internal/config/config.go

@@ -54,7 +54,7 @@ const (
 	EngineMySQL      Engine = "mysql"
 	EnginePostgreSQL Engine = "postgresql"
 	EngineSQLite     Engine = "sqlite"
-	EngineMSSQL      Engine = "sqlserver"
+	EngineMSSQL      Engine = "mssql"
 )
 
 type Config struct {