feat(flow): input feather, center puppet, smiley nav, arc buttons

- Input bar: show bouncing feather icon while typing (circle static); send
  after pause or on submit; debounced isTyping state
- Move puppet to center empty state (replacing feather); hide when there
  are messages
- Add smiley button next to mic; same as Talk (web: location, native: modal)
- Puppet actions: place four buttons in arc above puppet with icons; increase
  spacing between buttons and puppet

package-lock.json

@@ -22,12 +22,14 @@
         "buffer": "^6.0.3",
         "expo": "~52.0.0",
         "expo-asset": "~11.0.5",
+        "expo-av": "~15.0.2",
         "expo-constants": "~17.0.8",
         "expo-crypto": "~14.0.2",
         "expo-font": "~13.0.4",
         "expo-haptics": "~14.0.0",
         "expo-image-picker": "^17.0.10",
         "expo-linear-gradient": "~14.0.2",
+        "expo-speech": "~13.0.1",
         "expo-status-bar": "~2.0.0",
         "react": "18.3.1",
         "react-dom": "18.3.1",
@@ -39,6 +41,7 @@
         "react-native-svg": "^15.15.2",
         "react-native-view-shot": "^3.8.0",
         "react-native-web": "~0.19.13",
+        "react-native-webview": "13.12.2",
         "readable-stream": "^4.7.0",
         "vm-browserify": "^1.1.2"
       },
@@ -6134,6 +6137,23 @@
         "react-native": "*"
       }
     },
+    "node_modules/expo-av": {
+      "version": "15.0.2",
+      "resolved": "https://registry.npmjs.org/expo-av/-/expo-av-15.0.2.tgz",
+      "integrity": "sha512-AHIHXdqLgK1dfHZF0JzX3YSVySGMrWn9QtPzaVjw54FAzvXfMt4sIoq4qRL/9XWCP9+ICcCs/u3EcvmxQjrfcA==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*",
+        "react-native": "*",
+        "react-native-web": "*"
+      },
+      "peerDependenciesMeta": {
+        "react-native-web": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/expo-constants": {
       "version": "17.0.8",
       "resolved": "https://registry.npmjs.org/expo-constants/-/expo-constants-17.0.8.tgz",
@@ -6278,6 +6298,15 @@
         "invariant": "^2.2.4"
       }
     },
+    "node_modules/expo-speech": {
+      "version": "13.0.1",
+      "resolved": "https://registry.npmjs.org/expo-speech/-/expo-speech-13.0.1.tgz",
+      "integrity": "sha512-J7tvFzORsFpIKihMnayeY5lCPc15giDrlN+ws2uUNo0MvLv1HCYEu/5p3+aMmZXXsY5I1QlconD4CwRWw3JFig==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*"
+      }
+    },
     "node_modules/expo-status-bar": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/expo-status-bar/-/expo-status-bar-2.0.1.tgz",
@@ -10034,6 +10063,20 @@
       "integrity": "sha512-rkpe71W0N0c0Xz6QD0eJETuWAJGnJ9afsl1srmwPrI+yBCkge5EycXXbYRyvL29zZVUWQCY7InPRCv3GDXuZNw==",
       "license": "MIT"
     },
+    "node_modules/react-native-webview": {
+      "version": "13.12.2",
+      "resolved": "https://registry.npmjs.org/react-native-webview/-/react-native-webview-13.12.2.tgz",
+      "integrity": "sha512-OpRcEhf1IEushREax6rrKTeqGrHZ9OmryhZLBLQQU4PwjqVsq55iC8OdYSD61/F628f9rURn9THyxEZjrknpQQ==",
+      "license": "MIT",
+      "dependencies": {
+        "escape-string-regexp": "^4.0.0",
+        "invariant": "2.2.4"
+      },
+      "peerDependencies": {
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/react-native/node_modules/babel-plugin-syntax-hermes-parser": {
       "version": "0.23.1",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-hermes-parser/-/babel-plugin-syntax-hermes-parser-0.23.1.tgz",