refactor(lifecycle): reuse the replication tag parser (#6761)

`crates/lifecycle/src/tagging.rs` carried a byte-identical copy of the `form_urlencoded` tag decoder already owned by `rustfs-replication`, plus a duplicate of its test. Since `crates/lifecycle` already depends on `rustfs-replication`, replace the copy with a `pub(crate) use` re-export: no new crate edge, one parser, and no second implementation to drift from the replication contract. The `rule.rs` call site is unchanged.

Also drop `crates/ecstore/src/bucket/lifecycle/tagging_boundary.rs`, a migration-era boundary shim with zero call sites in the tree.

crates/ecstore/src/bucket/lifecycle/mod.rs

@@ -27,7 +27,6 @@ pub use self::core as lifecycle;
 mod replication_sink;
 pub mod rule;
 mod runtime_boundary;
-mod tagging_boundary;
 pub mod tier_delete_journal;
 pub mod tier_free_version_recovery;
 pub mod tier_last_day_stats;

crates/ecstore/src/bucket/lifecycle/tagging_boundary.rs

@@ -1,37 +0,0 @@
-// Copyright 2024 RustFS Team
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-use std::collections::HashMap;
-
-#[allow(
-    dead_code,
-    reason = "declared boundary surface for the ECStore replication split plan; no caller in this port (backlog#1823)"
-)]
-pub(crate) fn decode_tags_to_map(tags: &str) -> HashMap<String, String> {
-    crate::bucket::tagging::decode_tags_to_map(tags)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::decode_tags_to_map;
-
-    #[test]
-    fn decode_tags_to_map_preserves_bucket_tagging_parser_behavior() {
-        let tags = decode_tags_to_map("env=prod&encoded=a%2Fb&=ignored");
-
-        assert_eq!(tags.get("env").map(String::as_str), Some("prod"));
-        assert_eq!(tags.get("encoded").map(String::as_str), Some("a/b"));
-        assert!(!tags.contains_key(""));
-    }
-}

crates/lifecycle/src/tagging.rs

@@ -12,34 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use std::collections::HashMap;
+//! Lifecycle tag decoding reuses the parser owned by `rustfs-replication`.
+//!
+//! `crates/lifecycle` already depends on `rustfs-replication`, so this is a
+//! plain re-export: no new crate edge, and no second copy of the parser to
+//! drift from the replication contract.
 
-use url::form_urlencoded;
+pub(crate) use rustfs_replication::tagging::decode_tags_to_map;
-
-pub(crate) fn decode_tags_to_map(tags: &str) -> HashMap<String, String> {
-    let mut list = HashMap::new();
-
-    for (k, v) in form_urlencoded::parse(tags.as_bytes()) {
-        if k.is_empty() {
-            continue;
-        }
-
-        list.insert(k.to_string(), v.to_string());
-    }
-
-    list
-}
-
-#[cfg(test)]
-mod tests {
-    use super::decode_tags_to_map;
-
-    #[test]
-    fn decode_tags_to_map_preserves_bucket_tagging_parser_behavior() {
-        let tags = decode_tags_to_map("env=prod&encoded=a%2Fb&=ignored");
-
-        assert_eq!(tags.get("env").map(String::as_str), Some("prod"));
-        assert_eq!(tags.get("encoded").map(String::as_str), Some("a/b"));
-        assert!(!tags.contains_key(""));
-    }
-}