Migrate README markdown rendering to swift-markdown and fix badge images

- replace the hand-rolled markdown parser with a MarkupVisitor renderer
- keep the org-mode rendering path and shared sanitization helpers intact
- update WKWebView styling and height measurement for README content
- fix linked image and query-string badge rendering in markdown output
- expand README rendering tests and add markdown syntax coverage

Implements: https://todo.sr.ht/~ccleberg/Hutch/2

2 files changed, 53 insertions, 0 deletions

diff --git a/Hutch.xcodeproj/project.pbxproj b/Hutch.xcodeproj/project.pbxproj
index a52d824..e72dfd4 100644
--- a/Hutch.xcodeproj/project.pbxproj
+++ b/Hutch.xcodeproj/project.pbxproj
@@ -11,6 +11,8 @@
 		8B2F89672F69DEB900FC0253 /* README.md in Resources */ = {isa = PBXBuildFile; fileRef = 8B2F89642F69DEB900FC0253 /* README.md */; };
 		8B2F89682F69DEB900FC0253 /* SECURITY.md in Resources */ = {isa = PBXBuildFile; fileRef = 8B2F89652F69DEB900FC0253 /* SECURITY.md */; };
 		8BE082012F80000100000001 /* HutchWidgetExtension.appex in Embed App Extensions */ = {isa = PBXBuildFile; fileRef = 8BE081F62F80000100000001 /* HutchWidgetExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
+		8BE09E792F7B20CB00F88693 /* TEST_README.md in Resources */ = {isa = PBXBuildFile; fileRef = 8BE09E782F7B20CB00F88693 /* TEST_README.md */; };
+		8BF100032F9A000100000001 /* Markdown in Frameworks */ = {isa = PBXBuildFile; productRef = 8BF100022F9A000100000001 /* Markdown */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -53,6 +55,7 @@
 		8B8182C22F6B742B000AE049 /* HutchTests */ = {isa = PBXFileReference; lastKnownFileType = folder; path = HutchTests; sourceTree = "<group>"; };
 		8BDCA5272F6B76B20066AA29 /* HutchTests.xctestplan */ = {isa = PBXFileReference; lastKnownFileType = text; path = HutchTests.xctestplan; sourceTree = "<group>"; };
 		8BE081F62F80000100000001 /* HutchWidgetExtension.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = HutchWidgetExtension.appex; sourceTree = BUILT_PRODUCTS_DIR; };
+		8BE09E782F7B20CB00F88693 /* TEST_README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = TEST_README.md; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
@@ -106,6 +109,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				8BF100032F9A000100000001 /* Markdown in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -139,6 +143,7 @@
 				8BE081F52F80000100000001 /* HutchWidgetExtension */,
 				8B8182B82F6B73F3000AE049 /* HutchTests */,
 				8B4B28D22F6704280045FA19 /* Products */,
+				8BE09E782F7B20CB00F88693 /* TEST_README.md */,
 			);
 			sourceTree = "<group>";
 		};
@@ -175,6 +180,7 @@
 			);
 			name = Hutch;
 			packageProductDependencies = (
+				8BF100022F9A000100000001 /* Markdown */,
 			);
 			productName = Hutch;
 			productReference = 8B4B28D12F6704280045FA19 /* Hutch.app */;
@@ -254,6 +260,9 @@
 			);
 			mainGroup = 8B4B28C82F6704280045FA19;
 			minimizedProjectReferenceProxies = 1;
+			packageReferences = (
+				8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */,
+			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = 8B4B28D22F6704280045FA19 /* Products */;
 			projectDirPath = "";
@@ -272,6 +281,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				8B2F89662F69DEB900FC0253 /* LICENSE in Resources */,
+				8BE09E792F7B20CB00F88693 /* TEST_README.md in Resources */,
 				8B2F89672F69DEB900FC0253 /* README.md in Resources */,
 				8B2F89682F69DEB900FC0253 /* SECURITY.md in Resources */,
 			);
@@ -668,6 +678,25 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/apple/swift-markdown";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 0.7.3;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		8BF100022F9A000100000001 /* Markdown */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */;
+			productName = Markdown;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 8B4B28C92F6704280045FA19 /* Project object */;
 }
diff --git a/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
new file mode 100644
index 0000000..a2a45a3
--- /dev/null
+++ b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -0,0 +1,24 @@
+{
+  "originHash" : "b809819531d430dc5b7a0fb1fb5538d0321c5d541eed52a9990f37c38dd0f98a",
+  "pins" : [
+    {
+      "identity" : "swift-cmark",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/swiftlang/swift-cmark.git",
+      "state" : {
+        "revision" : "5d9bdaa4228b381639fff09403e39a04926e2dbe",
+        "version" : "0.7.1"
+      }
+    },
+    {
+      "identity" : "swift-markdown",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-markdown",
+      "state" : {
+        "revision" : "7d9a5ce307528578dfa777d505496bd5f544ad94",
+        "version" : "0.7.3"
+      }
+    }
+  ],
+  "version" : 3
+}