Build out all 27 modules + capstone (#1)

Co-authored-by: claude <claude@jpaul.io>
Co-committed-by: claude <claude@jpaul.io>

modules/26-orchestrating-multiple-agents/lab/fan-out.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Module 26 lab — fan work out across a fleet of worktrees.
+#
+# Creates one worktree per issue, each on its own issue-named branch. main is left untouched
+# and reserved as the integration point. Run from inside your tasks-app repo.
+#
+# This is Module 7's `git worktree add` repeated with a naming convention. The convention is the
+# point: branch name carries the issue number, folder name mirrors the branch.
+
+set -euo pipefail
+
+# Each entry: "<worktree-folder> <branch>". Edit to match your coordination plan.
+FLEET=(
+  "../tasks-app-42-count feature/42-count"
+  "../tasks-app-43-docs  feature/43-docs"
+  "../tasks-app-44-clear feature/44-clear"
+)
+
+if [ ! -d .git ] && ! git rev-parse --git-dir >/dev/null 2>&1; then
+  echo "error: run this from inside your tasks-app git repo." >&2
+  exit 1
+fi
+
+for entry in "${FLEET[@]}"; do
+  # shellcheck disable=SC2086
+  set -- $entry
+  path="$1"; branch="$2"
+  if git worktree list --porcelain | grep -q "branch refs/heads/$branch"; then
+    echo "skip: $branch already checked out in a worktree"
+    continue
+  fi
+  echo "fan-out: $path  (branch $branch)"
+  git worktree add "$path" -b "$branch"
+done
+
+echo
+echo "Fleet is up. main is reserved for integration — no agent works there."
+git worktree list