rename: Jarvis -> Jervis target, scheme, and folder throughout

The bundle-ID and display-name renames weren't enough — the actual
Xcode target/product name was still "Jarvis", which drives CFBundleName,
Xcode's Organizer archive list, the .xcodeproj filename, and the scheme
name. Renamed all the way through:

- project.yml: top-level name, target key, PRODUCT_NAME, source/info paths
- Jarvis/ -> Jervis/ (source folder, git-tracked as renames, no content
  diffs on the moved files)
- .gitignore, CI workflows, README, CONTRIBUTING: Jarvis.xcodeproj /
  scheme Jarvis -> Jervis.xcodeproj / scheme Jervis

Verified: xcodebuild -scheme Jervis succeeds, produces Jervis.app,
CFBundleName/CFBundleExecutable/CFBundleDisplayName all read "Jervis".
CFBundleIdentifier intentionally stays com.kisani.jarvis (per prior
decision — bundle ID isn't user-facing anywhere including Organizer).

Swift type names (JarvisApp, JarvisWordmark, etc.) and the Gitea repo
name/URL are unchanged — pure internal source identifiers, not user or
developer-facing product identity.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Jervis/Views/Shared/CachedBadge.swift

@@ -0,0 +1,43 @@
+// CachedBadge.swift
+// Jarvis — offline-cache indicators (a bare dot, and a labelled green badge).
+
+import SwiftUI
+
+/// Tiny green dot — used in the signal feed rows when a story is cached offline.
+struct CachedDot: View {
+    var size: CGFloat = 7
+    var body: some View {
+        Circle()
+            .fill(Palette.cachedGreen)
+            .frame(width: size, height: size)
+            .overlay(Circle().stroke(Color(hex: "3E7E3E"), lineWidth: 0.5))
+    }
+}
+
+/// Labelled green badge — "Cached", or "All N articles cached · available offline".
+struct CachedBadge: View {
+    let text: String
+
+    var body: some View {
+        HStack(spacing: 6) {
+            CachedDot(size: 6)
+            Text(text)
+                .font(.system(size: 12, weight: .bold))
+                .foregroundStyle(Color(hex: "6FBF6F"))
+        }
+        .padding(.horizontal, 9)
+        .padding(.vertical, 5)
+        .background(Palette.cachedGreen.opacity(0.18))
+        .clipShape(Capsule())
+    }
+}
+
+#Preview {
+    VStack(spacing: 16) {
+        CachedDot()
+        CachedBadge(text: "Cached")
+        CachedBadge(text: "All 7 articles cached · available offline")
+    }
+    .padding()
+    .background(Palette.background)
+}