toggle-window-mode-obsidian

Turn this bootstrap template into a real, named Obsidian plugin project — fills in the plugin's identity across manifest.json/package.json/versions.json/README/docs, drafts the initial feature description, initializes Git Flow branches, and verifies the build. Use this the first time this project is opened, whenever the user gives a plugin name and a description of what it should do (e.g. "run init-plugin, it's called Focus Timer, it shows a pomodoro timer in the status bar"), or asks to "initialize", "set up", "bootstrap", or "start" the plugin. Do not use it on a project that already has real feature code in src/ — it's a one-time scaffold step, not a general project-editing tool.