chore(jet): regenerate the backend jet to match the migrations

The committed go-jet code had drifted from the schema: robot_blocks and
robot_friend_requests (created in the baseline) had no generated tables, the
feedback_messages model was missing app_version/browser_tz (added in 00003 and
00004), and UseSchema omitted account_best_move and the two robot tables.
Regenerate so the jet layer mirrors the migrations again.

Additive only — two nullable columns appended to feedback_messages plus two new
tables; the full build, vet, unit and integration suites stay green.

backend/internal/postgres/jet/backend/table/robot_blocks.go

@@ -0,0 +1,96 @@
+//
+// Code generated by go-jet DO NOT EDIT.
+//
+// WARNING: Changes to this file may cause incorrect behavior
+// and will be lost if the code is regenerated
+//
+
+package table
+
+import (
+	"github.com/go-jet/jet/v2/postgres"
+)
+
+var RobotBlocks = newRobotBlocksTable("backend", "robot_blocks", "")
+
+type robotBlocksTable struct {
+	postgres.Table
+
+	// Columns
+	ID          postgres.ColumnString
+	BlockerID   postgres.ColumnString
+	GameID      postgres.ColumnString
+	Seat        postgres.ColumnInteger
+	RobotID     postgres.ColumnString
+	DisplayName postgres.ColumnString
+	CreatedAt   postgres.ColumnTimestampz
+
+	AllColumns     postgres.ColumnList
+	MutableColumns postgres.ColumnList
+	DefaultColumns postgres.ColumnList
+}
+
+type RobotBlocksTable struct {
+	robotBlocksTable
+
+	EXCLUDED robotBlocksTable
+}
+
+// AS creates new RobotBlocksTable with assigned alias
+func (a RobotBlocksTable) AS(alias string) *RobotBlocksTable {
+	return newRobotBlocksTable(a.SchemaName(), a.TableName(), alias)
+}
+
+// Schema creates new RobotBlocksTable with assigned schema name
+func (a RobotBlocksTable) FromSchema(schemaName string) *RobotBlocksTable {
+	return newRobotBlocksTable(schemaName, a.TableName(), a.Alias())
+}
+
+// WithPrefix creates new RobotBlocksTable with assigned table prefix
+func (a RobotBlocksTable) WithPrefix(prefix string) *RobotBlocksTable {
+	return newRobotBlocksTable(a.SchemaName(), prefix+a.TableName(), a.TableName())
+}
+
+// WithSuffix creates new RobotBlocksTable with assigned table suffix
+func (a RobotBlocksTable) WithSuffix(suffix string) *RobotBlocksTable {
+	return newRobotBlocksTable(a.SchemaName(), a.TableName()+suffix, a.TableName())
+}
+
+func newRobotBlocksTable(schemaName, tableName, alias string) *RobotBlocksTable {
+	return &RobotBlocksTable{
+		robotBlocksTable: newRobotBlocksTableImpl(schemaName, tableName, alias),
+		EXCLUDED:         newRobotBlocksTableImpl("", "excluded", ""),
+	}
+}
+
+func newRobotBlocksTableImpl(schemaName, tableName, alias string) robotBlocksTable {
+	var (
+		IDColumn          = postgres.StringColumn("id")
+		BlockerIDColumn   = postgres.StringColumn("blocker_id")
+		GameIDColumn      = postgres.StringColumn("game_id")
+		SeatColumn        = postgres.IntegerColumn("seat")
+		RobotIDColumn     = postgres.StringColumn("robot_id")
+		DisplayNameColumn = postgres.StringColumn("display_name")
+		CreatedAtColumn   = postgres.TimestampzColumn("created_at")
+		allColumns        = postgres.ColumnList{IDColumn, BlockerIDColumn, GameIDColumn, SeatColumn, RobotIDColumn, DisplayNameColumn, CreatedAtColumn}
+		mutableColumns    = postgres.ColumnList{BlockerIDColumn, GameIDColumn, SeatColumn, RobotIDColumn, DisplayNameColumn, CreatedAtColumn}
+		defaultColumns    = postgres.ColumnList{CreatedAtColumn}
+	)
+
+	return robotBlocksTable{
+		Table: postgres.NewTable(schemaName, tableName, alias, allColumns...),
+
+		//Columns
+		ID:          IDColumn,
+		BlockerID:   BlockerIDColumn,
+		GameID:      GameIDColumn,
+		Seat:        SeatColumn,
+		RobotID:     RobotIDColumn,
+		DisplayName: DisplayNameColumn,
+		CreatedAt:   CreatedAtColumn,
+
+		AllColumns:     allColumns,
+		MutableColumns: mutableColumns,
+		DefaultColumns: defaultColumns,
+	}
+}