Bridge: advertise node capabilities

apps/android/app/src/main/java/com/steipete/clawdis/node/NodeRuntime.kt

@@ -178,6 +178,10 @@ class NodeRuntime(context: Context) {
       val resolved =
         if (storedToken.isNullOrBlank()) {
           _statusText.value = "Pairing…"
+          val caps = buildList {
+            add("canvas")
+            if (cameraEnabled.value) add("camera")
+          }
           BridgePairingClient().pairAndHello(
             endpoint = endpoint,
             hello =
@@ -187,6 +191,7 @@ class NodeRuntime(context: Context) {
                 token = null,
                 platform = "Android",
                 version = "dev",
+                caps = caps,
               ),
           )
         } else {
@@ -209,6 +214,11 @@ class NodeRuntime(context: Context) {
             token = authToken,
             platform = "Android",
             version = "dev",
+            caps =
+              buildList {
+                add("canvas")
+                if (cameraEnabled.value) add("camera")
+              },
           ),
       )
     }

apps/android/app/src/main/java/com/steipete/clawdis/node/bridge/BridgePairingClient.kt

@@ -3,6 +3,7 @@ package com.steipete.clawdis.node.bridge
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonPrimitive
 import kotlinx.serialization.json.JsonNull
@@ -24,6 +25,7 @@ class BridgePairingClient {
     val token: String?,
     val platform: String?,
     val version: String?,
+    val caps: List<String>?,
   )
 
   data class PairResult(val ok: Boolean, val token: String?, val error: String? = null)
@@ -55,6 +57,7 @@ class BridgePairingClient {
             hello.token?.let { put("token", JsonPrimitive(it)) }
             hello.platform?.let { put("platform", JsonPrimitive(it)) }
             hello.version?.let { put("version", JsonPrimitive(it)) }
+            hello.caps?.let { put("caps", JsonArray(it.map(::JsonPrimitive))) }
           },
         )
 
@@ -76,6 +79,7 @@ class BridgePairingClient {
                 hello.displayName?.let { put("displayName", JsonPrimitive(it)) }
                 hello.platform?.let { put("platform", JsonPrimitive(it)) }
                 hello.version?.let { put("version", JsonPrimitive(it)) }
+                hello.caps?.let { put("caps", JsonArray(it.map(::JsonPrimitive))) }
               },
             )
 

apps/android/app/src/main/java/com/steipete/clawdis/node/bridge/BridgeSession.kt

@@ -12,6 +12,7 @@ import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 import kotlinx.coroutines.withContext
 import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonArray
 import kotlinx.serialization.json.JsonObject
 import kotlinx.serialization.json.JsonNull
 import kotlinx.serialization.json.JsonElement
@@ -39,6 +40,7 @@ class BridgeSession(
     val token: String?,
     val platform: String?,
     val version: String?,
+    val caps: List<String>?,
   )
 
   data class InvokeRequest(val id: String, val command: String, val paramsJson: String?)
@@ -191,6 +193,7 @@ class BridgeSession(
             hello.token?.let { put("token", JsonPrimitive(it)) }
             hello.platform?.let { put("platform", JsonPrimitive(it)) }
             hello.version?.let { put("version", JsonPrimitive(it)) }
+            hello.caps?.let { put("caps", JsonArray(it.map(::JsonPrimitive))) }
           },
         )