Align with the existing @logger alias convention by introducing
@application as a short alias for src/main/core/application. This
reduces import verbosity across ~130 main-process files while keeping
4 intentional sub-path imports (@main/core/application/Application)
unchanged to preserve the vi.mock bypass mechanism in tests.
Configured in tsconfig.node.json and electron.vite.config.ts; Vitest
inherits the alias automatically.
Signed-off-by: fullex <0xfullex@gmail.com>