feat: enrich Settings → App Info with metadata & resource links (#56)

Replaces the three-row App Info screen with a full About/Resources/Support/
Legal layout, driven by a declarative AppInfoRow model with all URLs centralized
in one AppLinks namespace.

- About: Version now shows "5.0.0 (build N)" (CFBundleShortVersionString +
  CFBundleVersion), plus Storage, Backup Schema, and Minimum iOS (17.6).
- Resources: What's New (bundled ReleaseNotes.json sheet, no network),
  Documentation & FAQ, Source Code, Privacy Policy, and Acknowledgements
  ("no third-party dependencies" + MIT license).
- Support: Report an Issue (a sheet that shows the locally-assembled
  version/OS/device diagnostics before offering Email or GitHub — nothing is
  collected silently) and Contact (mailto).
- Support the App: Rate (SwiftUI's @Environment(\.requestReview), which handles
  the scene internally and respects Apple's throttling — the modern, safer
  equivalent of the issue's SKStoreReviewController + connectedScenes path) and
  Share (ShareLink to the App Store listing).
- Legal: copyright footer with the current year.

External rows use Link/openURL with an "opens outside the app" accessibility
hint; the screen is standard adaptive Form controls with semantic colors, so it
tracks Dynamic Type and light/dark automatically.

New files (AppLinks, AppInfo, ReleaseNotes[.swift/.json], AppInfoView) auto-
compile/bundle via the synchronized DomainDig/ group. AppInfoTests covers the
mailto builder, version format, diagnostics contents, and that the bundled notes
ship and parse. Unit suite green.

Placeholder pending the App Store listing: AppLinks.appStoreID (the review/share
URLs derive from it), flagged with a TODO.

1 files changed, 4 insertions, 0 deletions

diff --git a/DomainDig.xcodeproj/project.pbxproj b/DomainDig.xcodeproj/project.pbxproj
index 386de7e..da11c1e 100644
--- a/DomainDig.xcodeproj/project.pbxproj
+++ b/DomainDig.xcodeproj/project.pbxproj
@@ -21,6 +21,7 @@
 		8BDA00010000000000000002 /* DomainDigWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BDA00010000000000000001 /* DomainDigWidgetExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BDB00010000000000000002 /* DomainDigShareExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BDB00010000000000000001 /* DomainDigShareExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BF9DA872F9B13FB00EF41D5 /* DomainDataPortabilityService.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8BF9DA842F9B13FB00EF41D5 /* DomainDataPortabilityService.swift */; };
+		99024E91EED2275FD80E83A9 /* AppInfoTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 499B99A1866999A38AC475F5 /* AppInfoTests.swift */; };
 		A5AF921BC1C2E6E940CC05DC /* SnapshotFixture.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5CA789D3607B55E3612E6FFA /* SnapshotFixture.swift */; };
 		C7CA9E02B0DC2708DE7A8563 /* DomainDataPortabilityServiceTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = CC948A02EC0184228BC4630E /* DomainDataPortabilityServiceTests.swift */; };
 		E959C4D24DAAB3CB80D854B2 /* DiffServiceTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 15A25DF2B8BB52589D49986B /* DiffServiceTests.swift */; };
@@ -77,6 +78,7 @@
 		0D85A44C5F315A1644AC9073 /* LocalAPIContractTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = LocalAPIContractTests.swift; sourceTree = "<group>"; };
 		15A25DF2B8BB52589D49986B /* DiffServiceTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = DiffServiceTests.swift; sourceTree = "<group>"; };
 		435AFB3F99D579D3D7B58279 /* DataMigrationServiceTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = DataMigrationServiceTests.swift; sourceTree = "<group>"; };
+		499B99A1866999A38AC475F5 /* AppInfoTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = AppInfoTests.swift; sourceTree = "<group>"; };
 		54D7C7D97A4006831572F468 /* DomainReportExporterTests.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = DomainReportExporterTests.swift; sourceTree = "<group>"; };
 		5CA789D3607B55E3612E6FFA /* SnapshotFixture.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = SnapshotFixture.swift; sourceTree = "<group>"; };
 		7572DA0A838E0A044F045260 /* LocalAPIContract.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = LocalAPIContract.swift; sourceTree = "<group>"; };
@@ -232,6 +234,7 @@
 				CC948A02EC0184228BC4630E /* DomainDataPortabilityServiceTests.swift */,
 				0D85A44C5F315A1644AC9073 /* LocalAPIContractTests.swift */,
 				435AFB3F99D579D3D7B58279 /* DataMigrationServiceTests.swift */,
+				499B99A1866999A38AC475F5 /* AppInfoTests.swift */,
 			);
 			name = DomainDigTests;
 			path = DomainDigTests;
@@ -491,6 +494,7 @@
 				A5AF921BC1C2E6E940CC05DC /* SnapshotFixture.swift in Sources */,
 				EA12012CDB4C21ABB4217D86 /* LocalAPIContractTests.swift in Sources */,
 				4F96CEB875EC3501E784CE39 /* DataMigrationServiceTests.swift in Sources */,
+				99024E91EED2275FD80E83A9 /* AppInfoTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};