update readme and agents

Author: piotr-iohk

AGENTS.md

@@ -20,12 +20,15 @@ This file provides guidance to AI agents like Cursor/Claude Code/Codex/WARP when
 # Run instrumented tests
 ./gradlew connectedDevDebugAndroidTest
 
-# Build for E2E tests
+# Build for E2E tests (UI hooks enabled, local Electrum by default)
 E2E=true ./gradlew assembleDevRelease
 
 # Build for E2E tests with geoblocking disabled
 GEO=false E2E=true ./gradlew assembleDevRelease
 
+# Build for E2E tests using network Electrum (not local; staging/mainnet based on flavor)
+E2E=true E2E_BACKEND=network ./gradlew assembleTnetRelease
+
 # Lint using detekt
 ./gradlew detekt
 
@@ -88,7 +91,7 @@ GEO=false E2E=true ./gradlew assembleDevRelease
 
 - **dev**: Regtest network for development
 - **tnet**: Testnet network
-- **mainnet**: Production (currently commented out)
+- **mainnet**: Production
 
 ## Common Pitfalls
 

README.md

@@ -119,12 +119,25 @@ To build the mainnet flavor:
 
 ### Build for E2E Testing
 
-Simply pass `E2E=true` as environment variable and build any flavor.
+Pass `E2E=true` and build any flavor. By default, E2E uses a local Electrum override.
 
 ```sh
 E2E=true ./gradlew assembleDevRelease
 ```
 
+#### Use Network Electrum (Staging/Mainnet)
+
+Set `E2E_BACKEND=network` to use the network Electrum based on the build flavor:
+
+```sh
+# regtest (dev flavor)
+E2E=true E2E_BACKEND=network ./gradlew assembleDevRelease
+# testnet (tnet flavor)
+E2E=true E2E_BACKEND=network ./gradlew assembleTnetRelease
+# mainnet
+E2E=true E2E_BACKEND=network ./gradlew assembleMainnetRelease
+```
+
 #### Disable Geoblocking Checks
 
 By default, geoblocking checks via API are enabled. To disable at build time, use the `GEO` environment variable: