fix: centralize URLs, tighten models, and polish SwiftUI bindingsv3.1.3

- Add shared HutchDeepLinkURL constants for app, widgets, and tests.
- Bump marketing version to 3.1.2 and build to 70 (app + widget extension).
- Point Hutch stats default base URL at HutchStatsAPI; add SRHTWebURL status
  incident feed and reuse it from SystemStatusService.
- Group Project into Metadata and Resources; split ContributionStatsResponse
  into StatsWindow and StatsTotals with updated decoding and tests.
- Replace @Bindable usage with explicit Bindings in Profile, Projects list,
  and repository ACL flows; simplify Home pinned-item helper; add no-op
  bodies on cancel alert buttons where the compiler requires a statement.
- Move repository row build-status indicator next to the relative-updated
  caption and reserve a fixed 8×8 slot so the row does not jump when status
  loads.
- Use NSString.lastPathComponent for build artifact filenames; collapse
  duplicate ACL error branches; minor HutchStats HTTP and XMLParserDelegate
  cleanups.
- Point widgets at HutchDeepLinkURL helpers; align tests with the new
  response and URL types.

1 files changed, 23 insertions, 0 deletions

diff --git a/Shared/HutchDeepLinkURLs.swift b/Shared/HutchDeepLinkURLs.swift
new file mode 100644
index 0000000..9b60086
--- /dev/null
+++ b/Shared/HutchDeepLinkURLs.swift
@@ -0,0 +1,23 @@
+import Foundation
+
+/// Canonical `hutch://` URLs for widgets, tests, and in-app links.
+enum HutchDeepLinkURL {
+    static let home = URL(string: "hutch://home")!
+    static let emptyHost = URL(string: "hutch://")!
+    static let repositoryGit = URL(string: "hutch://git/~user/repo")!
+    static let ticket = URL(string: "hutch://todo/~owner/tracker/42")!
+    static let buildJob = URL(string: "hutch://builds/12345")!
+    static let trackers = URL(string: "hutch://trackers")!
+    static let builds = URL(string: "hutch://builds")!
+    static let repositories = URL(string: "hutch://repositories")!
+    static let status = URL(string: "hutch://status")!
+    static let lookup = URL(string: "hutch://lookup")!
+    static let unknown = URL(string: "hutch://unknown")!
+    static let invalidTicketId = URL(string: "hutch://todo/~owner/tracker/abc")!
+    static let invalidBuildId = URL(string: "hutch://builds/abc")!
+}
+
+/// Default Hutch Stats API base URL (mirrors `AppConfiguration` fallback).
+enum HutchStatsAPI {
+    static let defaultBaseURL = URL(string: "https://hutch-stats.zerolabs.sh")!
+}