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, 1 insertions, 2 deletions

diff --git a/Hutch/Models/Builds.swift b/Hutch/Models/Builds.swift
index d666398..3926888 100644
--- a/Hutch/Models/Builds.swift
+++ b/Hutch/Models/Builds.swift
@@ -136,8 +136,7 @@ struct BuildArtifact: Codable, Sendable, Identifiable, Equatable {
     let url: URL?
 
     var filename: String {
-        let pathComponents = path.split(separator: "/")
-        return pathComponents.last.map(String.init) ?? path
+        (path as NSString).lastPathComponent
     }
 
     var isDownloadable: Bool {