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/e2e-walkthrough.sh

@@ -85,7 +85,7 @@ export HOME="$REAL_HOME"
 export PATH="$REAL_HOME/.bun/bin:$REAL_HOME/.hermes/hermes-agent/venv/bin:$REAL_HOME/.local/share/npm/bin:$PATH"
 
 # Resolve uwf and ocas
-UWF="bun $REPO_DIR/packages/cli-workflow/src/cli.ts"
+UWF="bun $REPO_DIR/packages/cli/src/cli.ts"
 OCAS="ocas"
 
 PASS=0