docs: redesign README with SVG terminal mockups

feat: support LWB_PORT env var for custom port

docs: rewrite README for v0.5.0 plugin architecture

feat: add SessionStart hook to register /lwd:* commands in autocomplete

feat: rename plugin from learn to lwd for better discoverability

fix: add skills path to plugin.json for namespace registration

feat: restore .claude/skills/ for plugin registration

fix: remove project-level skills, use plugin cache instead

feat: learn-while-building v0.5.0 — Claude Code plugin with dist

fix: move commands to .claude/skills/ for proper plugin registration

fix: add static asset copy to build, move commands to root level

refactor: remove Ink UI, CLI, setup — plugin-only architecture

feat: add plugin-root dashboard resolution and auto-start entry

feat: add 6 plugin command files for /learn:* namespace

feat: add PostToolUse hook proxy for plugin