feat: initial release v0.1.0

- Custom Keyboard Extension with push-to-talk UI
- iOS 26 SpeechAnalyzer + DictationTranscriber (iOS 18 SF fallback)
- OpenAI-compatible LLM client (4 built-in providers + custom)
- 3-page onboarding flow + provider config UI
- App Group shared storage for cross-process config
- 8s LLM timeout with raw-transcript fallback
- App Store privacy manifests for both targets
- SwiftLint + XcodeGen + GitHub Actions CI
- Unit tests (4/4 passing)

OpenLess/Views/ProviderPickerSection.swift

@@ -0,0 +1,36 @@
+// ProviderPickerSection.swift
+// OSGKeyboard · Main App
+//
+// A picker that swaps in the right BaseURL/Model defaults for a chosen
+// provider, while letting the user override each field.
+
+import SwiftUI
+import OSGKeyboardShared
+
+struct ProviderPickerSection: View {
+    @ObservedObject var config: ProviderConfig
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 12) {
+            HStack {
+                Text("Provider")
+                    .font(.subheadline.weight(.semibold))
+                    .foregroundStyle(Theme.textSecondary)
+                Spacer()
+            }
+
+            Picker("Provider", selection: $config.providerId) {
+                ForEach(LLMProvider.presets) { p in
+                    Text(p.name).tag(p.id)
+                }
+            }
+            .pickerStyle(.menu)
+            .tint(Theme.accent)
+            .onChange(of: config.providerId) { _, newId in
+                let preset = LLMProvider.provider(id: newId)
+                config.apply(preset: preset)
+            }
+        }
+        .cardStyle()
+    }
+}