Update README.MD and add nano-claude-code v3.0 + original-source-code/src

- README.MD: add original-source-code and nano-claude-code sections, update
  overview table (4 subprojects), add v3.0 news entry, expand comparison table
  with memory/multi-agent/skills dimensions
- nano-claude-code v3.0: multi-agent package (multi_agent/), memory package
  (memory/), skill package (skill/) with built-in /commit and /review skills,
  context compression (compaction.py), tool registry plugin system, diff view,
  17 slash commands, 18 built-in tools, 101 tests (~5000 lines total)
- original-source-code/src: add raw TypeScript source tree (1884 files)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

original-source-code/src/commands/bridge/index.ts

@@ -0,0 +1,26 @@
+import { feature } from 'bun:bundle'
+import { isBridgeEnabled } from '../../bridge/bridgeEnabled.js'
+import type { Command } from '../../commands.js'
+
+function isEnabled(): boolean {
+  if (!feature('BRIDGE_MODE')) {
+    return false
+  }
+  return isBridgeEnabled()
+}
+
+const bridge = {
+  type: 'local-jsx',
+  name: 'remote-control',
+  aliases: ['rc'],
+  description: 'Connect this terminal for remote-control sessions',
+  argumentHint: '[name]',
+  isEnabled,
+  get isHidden() {
+    return !isEnabled()
+  },
+  immediate: true,
+  load: () => import('./bridge.js'),
+} satisfies Command
+
+export default bridge