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/Feeds/AddFeedSheet.swift

@@ -0,0 +1,113 @@
+// AddFeedSheet.swift
+// Jarvis — add a new RSS feed: URL + name + confirm.
+
+import SwiftUI
+
+struct AddFeedSheet: View {
+    /// Returns true on success.
+    let onAdd: (String, String) async -> Bool
+
+    @Environment(\.dismiss) private var dismiss
+    @State private var url = ""
+    @State private var name = ""
+    @State private var isSubmitting = false
+    @State private var errorMessage: String?
+
+    private var canSubmit: Bool {
+        !url.trimmingCharacters(in: .whitespaces).isEmpty &&
+        !name.trimmingCharacters(in: .whitespaces).isEmpty &&
+        !isSubmitting
+    }
+
+    var body: some View {
+        ZStack {
+            Palette.background.ignoresSafeArea()
+            VStack(alignment: .leading, spacing: 0) {
+                HStack {
+                    Text("Add feed")
+                        .font(.system(size: 22, weight: .heavy))
+                        .foregroundStyle(Palette.primaryText)
+                    Spacer()
+                    Button { dismiss() } label: {
+                        Image(systemName: "xmark")
+                            .font(.system(size: 15, weight: .bold))
+                            .foregroundStyle(Color(hex: "888888"))
+                            .frame(width: 44, height: 44)
+                    }
+                }
+                .padding(.top, 8)
+
+                field(label: "FEED URL", text: $url,
+                      placeholder: "https://example.com/rss",
+                      mono: true, keyboard: .URL)
+                    .padding(.top, 12)
+
+                field(label: "DISPLAY NAME", text: $name,
+                      placeholder: "Example News",
+                      mono: false, keyboard: .default)
+                    .padding(.top, 16)
+
+                if let errorMessage {
+                    Text(errorMessage)
+                        .font(.system(size: 13))
+                        .foregroundStyle(Color(hex: "C25555"))
+                        .padding(.top, 14)
+                }
+
+                Button {
+                    Task { await submit() }
+                } label: {
+                    HStack {
+                        Spacer()
+                        if isSubmitting {
+                            ProgressView().tint(.black)
+                        } else {
+                            Text("Add feed").font(.system(size: 16, weight: .bold)).foregroundStyle(.black)
+                        }
+                        Spacer()
+                    }
+                    .frame(height: 52)
+                    .background(canSubmit ? Palette.orange : Palette.surface2)
+                    .clipShape(RoundedRectangle(cornerRadius: 14))
+                }
+                .disabled(!canSubmit)
+                .padding(.top, 28)
+
+                Spacer()
+            }
+            .padding(.horizontal, 20)
+        }
+        .presentationDetents([.medium])
+        .presentationDragIndicator(.visible)
+    }
+
+    private func field(label: String, text: Binding<String>, placeholder: String,
+                       mono: Bool, keyboard: UIKeyboardType) -> some View {
+        VStack(alignment: .leading, spacing: 8) {
+            Text(label)
+                .font(.system(size: 10, weight: .bold, design: .monospaced))
+                .kerning(0.8)
+                .foregroundStyle(Palette.tertiaryText)
+            TextField("", text: text,
+                      prompt: Text(placeholder).foregroundColor(Palette.mutedText))
+                .font(.system(size: 15, weight: .regular, design: mono ? .monospaced : .default))
+                .foregroundStyle(mono ? Palette.orange : .white)
+                .autocorrectionDisabled()
+                .textInputAutocapitalization(.never)
+                .keyboardType(keyboard)
+                .padding(14)
+                .background(Palette.surface)
+                .overlay(RoundedRectangle(cornerRadius: 12).stroke(Palette.surface2, lineWidth: 1))
+                .clipShape(RoundedRectangle(cornerRadius: 12))
+        }
+    }
+
+    private func submit() async {
+        isSubmitting = true
+        errorMessage = nil
+        let ok = await onAdd(url.trimmingCharacters(in: .whitespaces),
+                             name.trimmingCharacters(in: .whitespaces))
+        isSubmitting = false
+        if ok { dismiss() } else { errorMessage = "Couldn’t add feed. Check the URL and try again." }
+    }
+}