refactor: align package folder names with npm package names

Rename packages/ subdirectories to match their @united-workforce/* scope:
  cli-workflow → cli
  workflow-agent-builtin → agent-builtin
  workflow-agent-claude-code → agent-claude-code
  workflow-agent-hermes → agent-hermes
  workflow-dashboard → dashboard
  workflow-protocol → protocol
  workflow-util-agent → util-agent
  workflow-util → util

Updated all tsconfig references, scripts, and active docs.
Historical docs (docs/plans/, docs/superpowers/) left as-is.

Closes #21

scripts/batch-solve.sh

@@ -6,7 +6,7 @@
 #
 # Examples:
 #   ./scripts/batch-solve.sh 448 449
-#   ./scripts/batch-solve.sh --agent "bun run $(pwd)/packages/workflow-agent-claude-code/src/cli.ts" 448 449
+#   ./scripts/batch-solve.sh --agent "bun run $(pwd)/packages/agent-claude-code/src/cli.ts" 448 449
 #   ./scripts/batch-solve.sh --repo uncaged/workflow --count 15 448 449
 
 set -euo pipefail