Finalize release downloads, installation prompt and verified handoff

docs/BUILDING.md

@@ -99,8 +99,8 @@ screenshots and worker inference; those are different release gates.
 
 ## Headless Linux Google search
 
-These are the current script and CLI interfaces, not evidence of an executed
-Linux release. On a native Linux build host with Vulkan development libraries
+The published headless archive is documented in [Linux setup](LINUX-HEADLESS.md).
+The commands below describe a source build. On a native Linux build host with Vulkan development libraries
 and `glslc`, run from the repository root:
 
 On Ubuntu 24.04, the native worker build prerequisites are `build-essential`,
@@ -248,8 +248,9 @@ python tools/package_windows.py --cli target/release/searchi.exe
 
 The additional binary is named `searchi-cli.exe`; `searchi.exe` remains the
 desktop launcher. Its model cache and database must be selected explicitly,
-as described in [agent integration](AGENT-INTEGRATION.md). This option does not
-add the CLI to the already published v0.1.0 installer.
+as described in [agent integration](AGENT-INTEGRATION.md). Published Windows
+installers provide the desktop app; the optional CLI/MCP ZIP is a separate
+download linked in the README.
 
 The generated `.searchi/packages/searchi-windows.zip` contains the desktop,
 matching-architecture Google worker, FFmpeg/FFprobe and notices. It excludes