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/components/command-autocomplete.tsx

@@ -0,0 +1,66 @@
+import React from 'react';
+import { Box, Text } from 'ink';
+import type { CommandDef, CommandArgDef } from '@mosaic/types';
+
+interface CommandAutocompleteProps {
+  commands: CommandDef[];
+  selectedIndex: number;
+  inputValue: string; // the current input after '/'
+}
+
+export function CommandAutocomplete({
+  commands,
+  selectedIndex,
+  inputValue,
+}: CommandAutocompleteProps) {
+  if (commands.length === 0) return null;
+
+  // Filter by inputValue prefix/fuzzy match
+  const query = inputValue.startsWith('/') ? inputValue.slice(1) : inputValue;
+  const filtered = filterCommands(commands, query);
+
+  if (filtered.length === 0) return null;
+
+  const clampedIndex = Math.min(selectedIndex, filtered.length - 1);
+  const selected = filtered[clampedIndex];
+
+  return (
+    <Box flexDirection="column" borderStyle="round" borderColor="gray" paddingX={1}>
+      {filtered.slice(0, 8).map((cmd, i) => (
+        <Box key={`${cmd.execution}-${cmd.name}`}>
+          <Text color={i === clampedIndex ? 'cyan' : 'white'} bold={i === clampedIndex}>
+            {i === clampedIndex ? '▶ ' : '  '}/{cmd.name}
+          </Text>
+          {cmd.aliases.length > 0 && (
+            <Text color="gray"> ({cmd.aliases.map((a) => `/${a}`).join(', ')})</Text>
+          )}
+          <Text color="gray"> — {cmd.description}</Text>
+        </Box>
+      ))}
+      {selected && selected.args && selected.args.length > 0 && (
+        <Box marginTop={1} borderStyle="single" borderColor="gray" paddingX={1}>
+          <Text color="yellow">
+            /{selected.name} {getArgHint(selected.args)}
+          </Text>
+          <Text color="gray"> — {selected.description}</Text>
+        </Box>
+      )}
+    </Box>
+  );
+}
+
+function filterCommands(commands: CommandDef[], query: string): CommandDef[] {
+  if (!query) return commands;
+  const q = query.toLowerCase();
+  return commands.filter(
+    (c) =>
+      c.name.includes(q) ||
+      c.aliases.some((a) => a.includes(q)) ||
+      c.description.toLowerCase().includes(q),
+  );
+}
+
+function getArgHint(args: CommandArgDef[]): string {
+  if (!args || args.length === 0) return '';
+  return args.map((a) => (a.optional ? `[${a.name}]` : `<${a.name}>`)).join(' ');
+}