fix(model): rename Application table to hpc_applications

Avoid table name collision with other systems.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

internal/model/application.go

@@ -31,7 +31,7 @@ type Application struct {
 }
 
 func (Application) TableName() string {
-	return "applications"
+	return "hpc_applications"
 }
 
 // ParameterSchema defines a single parameter in an application's form schema.