feat(mosaic): merge @mosaic/cli into @mosaic/mosaic

@mosaic/mosaic is now the single package providing both:
- 'mosaic' binary (CLI: yolo, coord, prdy, tui, gateway, etc.)
- 'mosaic-wizard' binary (installation wizard)

Changes:
- Move packages/cli/src/* into packages/mosaic/src/
- Convert dynamic @mosaic/mosaic imports to static relative imports
- Add CLI deps (ink, react, socket.io-client, @mosaic/config) to mosaic
- Add jsx: react-jsx to mosaic's tsconfig
- Exclude packages/cli from workspace (pnpm-workspace.yaml)
- Update install.sh to install @mosaic/mosaic instead of @mosaic/cli
- Bump version to 0.0.17

This eliminates the circular dependency between @mosaic/cli and
@mosaic/mosaic that was blocking the build graph.

packages/mosaic/src/tui/commands/parse.ts

@@ -0,0 +1,11 @@
+import type { ParsedCommand } from '@mosaic/types';
+
+export function parseSlashCommand(input: string): ParsedCommand | null {
+  const match = input.match(/^\/([a-z][a-z0-9:_-]*)\s*(.*)?$/i);
+  if (!match) return null;
+  return {
+    command: match[1]!,
+    args: match[2]?.trim() || null,
+    raw: input,
+  };
+}