feat(desktop): add Windows support

[miguelsousa28]

Summary

• Add Windows-compatible monorepo scripts, terminal IPC named pipes, shell/env/teardown handling, and agent hook wrappers.
• Package Windows NSIS builds without local node-gyp-only rebuilds and wire Windows artifacts/update manifests into release workflows.
• Update install, build, and release docs for Windows.

Validation

• npx.cmd bun@1.3.6 run --cwd apps/desktop typecheck
• npx.cmd bun@1.3.6 test apps/desktop/src/lib/trpc/routers/workspaces/utils/teardown.test.ts
• npx.cmd bun@1.3.6 test apps/desktop/src/main/lib/agent-setup/shell-wrappers.test.ts apps/desktop/src/main/lib/agent-setup/agent-wrappers.test.ts apps/desktop/src/main/lib/terminal/env.test.ts apps/desktop/src/main/terminal-host/session.test.ts apps/desktop/src/main/terminal-host/daemon.test.ts apps/desktop/src/lib/trpc/routers/workspaces/utils/shell-env.test.ts
• npx.cmd bun@1.3.6 run --cwd apps/desktop build (generated release/ADE-0.1.0-x64.exe and latest.yml)