feat: Add initial AuthzQuerier implementation (#5919)

feat: Add initial AuthzQuerier implementation
- Adds package database/dbauthz that adds a database.Store implementation where each method goes through AuthZ checks
- Implements all database.Store methods on AuthzQuerier
- Updates and fixes unit tests where required
- Updates coderd initialization to use AuthzQuerier if codersdk.ExperimentAuthzQuerier is enabled

coderd/autobuild/executor/lifecycle_executor.go

@@ -12,6 +12,7 @@ import (
 	"cdr.dev/slog"
 	"github.com/coder/coder/coderd/autobuild/schedule"
 	"github.com/coder/coder/coderd/database"
+	"github.com/coder/coder/coderd/database/dbauthz"
 )
 
 // Executor automatically starts or stops workspaces.
@@ -33,7 +34,8 @@ type Stats struct {
 // New returns a new autobuild executor.
 func New(ctx context.Context, db database.Store, log slog.Logger, tick <-chan time.Time) *Executor {
 	le := &Executor{
-		ctx:  ctx,
+		//nolint:gocritic // TODO: make an autostart role instead of using System
+		ctx:  dbauthz.AsSystem(ctx),
 		db:   db,
 		tick: tick,
 		log:  log,