fix: 优化markdown解析器

Cargo.lock

@@ -1340,6 +1340,15 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "getopts"
+version = "0.2.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cba6ae63eb948698e300f645f87c70f76630d505f23b8907cf1e193ee85048c1"
+dependencies = [
+ "unicode-width",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.1.16"
@@ -2312,6 +2321,7 @@ dependencies = [
  "dirs 5.0.1",
  "lazy_static",
  "md5",
+ "pulldown-cmark",
  "regex",
  "reqwest 0.11.27",
  "rusqlite",
@@ -3150,6 +3160,18 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "pulldown-cmark"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57206b407293d2bcd3af849ce869d52068623f19e1b5ff8e8778e3309439682b"
+dependencies = [
+ "bitflags 2.9.1",
+ "getopts",
+ "memchr",
+ "unicase",
+]
+
 [[package]]
 name = "quick-xml"
 version = "0.37.5"
@@ -4971,6 +4993,12 @@ version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
 
+[[package]]
+name = "unicode-width"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
+
 [[package]]
 name = "unsafe-libyaml"
 version = "0.2.11"