perf: optimize rust acceleration paths

Rust vs Python benchmark results:

- RSS: Rust 0.299 ms/loop vs Python 7.913 ms/loop, 26.47x faster

- Filter: Rust 12.740 ms/loop vs Python 57.187 ms/loop, 4.49x faster

- MetaInfo: Rust 64.680 ms/loop vs Python 316.158 ms/loop, 4.89x faster

- Indexer agsvpt: Rust 145.76 ms vs Python 3686.50 ms, 25.29x faster

- Indexer pttime: Rust 166.51 ms vs Python 4019.87 ms, 24.14x faster

- Indexer chdbits: Rust 161.17 ms vs Python 3604.28 ms, 22.36x faster

- Indexer iptorrents: Rust 77.82 ms vs Python 17615.52 ms, 226.36x faster

Validation:

- cargo fmt/check/test for rust/moviepilot_rust

- pytest Rust-related coverage: tests/test_rust_accel.py tests/test_torrent_filter.py tests/test_metainfo.py tests/test_indexer_spider_search_url.py tests/test_workflow_fetch_rss.py

- tests/run.py legacy suite

- pylint app/ --errors-only

rust/moviepilot_rust/Cargo.lock

@@ -32,6 +32,21 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
+[[package]]
+name = "bit-set"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08807e080ed7f9d5433fa9b275196cfc35414f66a0c79d864dc51a0d825231a3"
+dependencies = [
+ "bit-vec",
+]
+
+[[package]]
+name = "bit-vec"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e764a1d40d510daf35e07be9eb06e75770908c27d411ee6c92109c9840eaaf7"
+
 [[package]]
 name = "bitflags"
 version = "2.11.1"
@@ -161,6 +176,17 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b2972feb8dffe7bc8c5463b1dacda1b0dfbed3710e50f977d965429692d74cd8"
 
+[[package]]
+name = "fancy-regex"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e24cb5a94bcae1e5408b0effca5cd7172ea3c5755049c5f3af4cd283a165298"
+dependencies = [
+ "bit-set",
+ "regex-automata",
+ "regex-syntax",
+]
+
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.9"
@@ -507,6 +533,7 @@ version = "0.1.0"
 dependencies = [
  "anitomy-pure",
  "chrono",
+ "fancy-regex",
  "inputx-pinyin",
  "minijinja",
  "once_cell",