feat: Dual-OS Neovim MCP Integration

- Created linux-nvim and win-nvim MCP servers for deep Neovim Msgpack-RPC integration.
- Implemented tools: nvim_goto_line, nvim_get_active_buffer, nvim_get_cursor, nvim_get_visual_selection, nvim_set_diagnostics.
- Added gemini-integration.lua for active UI socket discovery.
- Updated build.cmd to cross-compile for both Windows (gnu) and Linux (musl).
- Updated README, design.md, and instructions.md with architecture and tool capabilities.

build.cmd

@@ -1,12 +1,47 @@
 @echo off
-echo Building mcp-memory in release mode...
-cargo build --release
+setlocal
 
-if %ERRORLEVEL% EQU 0 (
-    echo.
-    echo Build successful!
-    echo Executable is located at: target\release\mcp-memory.exe
-) else (
-    echo.
-    echo Build failed with error code %ERRORLEVEL%.
+echo Building mcp-memory (server and stub) for Windows...
+rustup run stable cargo build --release
+if %ERRORLEVEL% NEQ 0 (
+    echo Windows build failed!
+    exit /b %ERRORLEVEL%
 )
+
+echo Building mcp-memory (server and stub) for Linux (WSL)...
+rustup run stable cargo zigbuild --release --target x86_64-unknown-linux-musl
+if %ERRORLEVEL% NEQ 0 (
+    echo Linux build failed!
+    exit /b %ERRORLEVEL%
+)
+
+echo.
+echo Build successful! Gracefully shutting down running servers...
+:: Attempt shutdown via CLI flag
+if exist "C:\Users\reazul.ashraf\.local\bin\mcp-memory-server.exe" (
+    "C:\Users\reazul.ashraf\.local\bin\mcp-memory-server.exe" --exit >nul 2>&1
+)
+:: Fallback shutdown via HTTP endpoint
+curl -X POST http://127.0.0.1:3000/shutdown -s -o nul >nul 2>&1
+
+:: Give the server a moment to flush checkpoints and release file locks
+timeout /t 2 /nobreak >nul
+
+echo.
+echo Copying Windows executables...
+copy /Y target\release\mcp-memory-server.exe "C:\Users\reazul.ashraf\.local\bin\mcp-memory-server.exe"
+copy /Y target\release\mcp-memory-stub.exe "C:\Users\reazul.ashraf\.local\bin\mcp-memory-stub.exe"
+copy /Y target\x86_64-pc-windows-gnu\release\mcp-memory-win-nvim.exe "C:\Users\reazul.ashraf\.local\bin\mcp-memory-win-nvim.exe"
+
+echo Copying Linux executables to WSL...
+wsl -d Ubuntu -e bash -c "cp /mnt/c/Users/reazul.ashraf/workspace/rust/mcp-memory/target/x86_64-unknown-linux-musl/release/mcp-memory-server /home/riz/.local/bin/mcp-memory-server && chmod +x /home/riz/.local/bin/mcp-memory-server"
+wsl -d Ubuntu -e bash -c "cp /mnt/c/Users/reazul.ashraf/workspace/rust/mcp-memory/target/x86_64-unknown-linux-musl/release/mcp-memory-stub /home/riz/.local/bin/mcp-memory-stub && chmod +x /home/riz/.local/bin/mcp-memory-stub"
+wsl -d Ubuntu -e bash -c "cp /mnt/c/Users/reazul.ashraf/workspace/rust/mcp-memory/target/x86_64-unknown-linux-musl/release/mcp-memory-linux-nvim /home/riz/.local/bin/mcp-memory-linux-nvim && chmod +x /home/riz/.local/bin/mcp-memory-linux-nvim"
+
+echo Copying instructions.md...
+copy /Y instructions.md "C:\Users\reazul.ashraf\.gemini\antigravity-cli\mcp\memory\instructions.md"
+wsl -d Ubuntu -e bash -c "mkdir -p /home/riz/.gemini/antigravity-cli/mcp/memory && cp /mnt/c/Users/reazul.ashraf/workspace/rust/mcp-memory/instructions.md /home/riz/.gemini/antigravity-cli/mcp/memory/instructions.md"
+
+echo.
+echo Build and deployment complete!
+endlocal