WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

internal/application/service/wiki_slug_lock.go

@@ -0,0 +1,34 @@
+package service
+
+import (
+	"context"
+	"errors"
+
+	"github.com/Tencent/WeKnora/internal/common/redislock"
+)
+
+// Long page synthesis needs a renewable, token-owned lease. Redis failure
+// stops reduction instead of allowing unlocked writes; releasing a stale
+// owner can never delete a successor's lock.
+func (s *wikiIngestService) withSlugLock(ctx context.Context, kbID, slug string, fn func(context.Context) error) (bool, error) {
+	if s.redisClient == nil {
+		return true, fn(ctx)
+	}
+	acquired := false
+	err := redislock.WithRenewableLockWait(ctx, s.redisClient, wikiSlugLockPrefix+kbID+":"+slug,
+		wikiSlugLockTTL, wikiSlugLockTTL/3, wikiSlugLockWait, func(lockCtx context.Context) error {
+			acquired = true
+			if err := redislock.EnsureOwnership(lockCtx); err != nil {
+				return err
+			}
+			return fn(lockCtx)
+		})
+	if !acquired && ctx.Err() == nil && errors.Is(err, context.DeadlineExceeded) {
+		return false, nil
+	}
+	return acquired, err
+}
+
+func verifyWikiSlugOwnership(ctx context.Context) error {
+	return redislock.EnsureOwnership(ctx)
+}