fix(doltserver): resolve pre-existing integration test failures

Two fixes for nightly integration test failures:

1. wl_commons "database exists" error: InitRig now uses CREATE DATABASE
   IF NOT EXISTS when the Dolt server is running, preventing failures
   when the database was already created by a prior test run sharing the
   same container. Also adds t.Cleanup to drop the wl_commons database
   after TestRealWLCommonsStore_Conformance, matching the cleanup pattern
   already used by scheduler tests (setupMultiRigSchedulerTown).

2. wisps schema drift: Remove the crystallizes column from wispsCreateDDL.
   beads v1.0.0 actively drops this column via migration 012
   (MigrateDropHOPColumns). The GT-side DDL was out of sync with what
   bd expects, causing schema mismatches when GT creates the wisps table
   directly.

Author: 8888

internal/doltserver/doltserver.go

@@ -2290,9 +2290,12 @@ func InitRig(townRoot, rigName string) (serverWasRunning bool, created bool, err
 	}
 
 	if running {
-		// Server is running: use CREATE DATABASE which both creates the
-		// directory and registers the database with the live server.
-		if err := serverExecSQL(townRoot, fmt.Sprintf("CREATE DATABASE `%s`", rigName)); err != nil {
+		// Server is running: use CREATE DATABASE IF NOT EXISTS which both
+		// creates the directory and registers the database with the live
+		// server. IF NOT EXISTS prevents failures when the database was
+		// already created (e.g., by a prior test run sharing the same
+		// Dolt container).
+		if err := serverExecSQL(townRoot, fmt.Sprintf("CREATE DATABASE IF NOT EXISTS `%s`", rigName)); err != nil {
 			return true, false, fmt.Errorf("creating database on running server: %w", err)
 		}
 		// Wait for the new database to appear in the server's in-memory catalog.

internal/doltserver/wisps_migrate.go

@@ -380,7 +380,6 @@ var wispsCreateDDL = `CREATE TABLE wisps (
   ephemeral tinyint(1) DEFAULT 1,
   pinned tinyint(1) DEFAULT 0,
   is_template tinyint(1) DEFAULT 0,
-  crystallizes tinyint(1) DEFAULT 0,
   mol_type varchar(32) DEFAULT '',
   work_type varchar(32) DEFAULT 'mutex',
   quality_score double,

internal/doltserver/wl_commons_integration_test.go

@@ -33,6 +33,13 @@ func startIsolatedDoltContainer(t *testing.T) string {
 func TestRealWLCommonsStore_Conformance(t *testing.T) {
 	townRoot := startIsolatedDoltContainer(t)
 
+	// Drop the wl_commons database on cleanup to prevent "database exists"
+	// errors when the container is shared across test runs (same pattern as
+	// scheduler tests — see setupMultiRigSchedulerTown).
+	t.Cleanup(func() {
+		_ = serverExecSQL(townRoot, fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", WLCommonsDB))
+	})
+
 	// Pre-create the database before parallel subtests to avoid
 	// concurrent CREATE DATABASE races.
 	store := NewWLCommons(townRoot)