Add cross-machine sync tooling (clone/pull/push all module repos)

repos.txt + sync-*.sh let any machine (Mac or Windows/Git Bash) hydrate all 49
module repos and keep them in sync via GitHub+gitea. Pulls are fast-forward only
(never clobber local work); pushes send commits only and flag uncommitted repos.
See SYNC.md for the two-machine workflow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sync-pull-all.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# Pull the latest for the parent repo + every module repo.
+# Fast-forward only: it NEVER overwrites or deletes your local work. If a repo has
+# diverged or has conflicting local changes, it is skipped and reported so you can
+# handle it by hand. Clones any module folder that is missing.
+# Run this before you start working on a machine.
+#
+#   bash sync-pull-all.sh
+set -uo pipefail
+cd "$(dirname "$0")" || exit 1
+GH="https://github.com/gsinghpal"
+GITEA="https://git.nexasystems.ca/admin"
+
+pull_one() {
+  local d="$1"
+  local br; br=$(git -C "$d" symbolic-ref --short HEAD 2>/dev/null || echo main)
+  if git -C "$d" pull --ff-only -q origin "$br" 2>/dev/null; then
+    echo "updated: $d"
+  else
+    if [ -n "$(git -C "$d" status --porcelain --untracked-files=no)" ]; then
+      echo "SKIP (uncommitted changes block ff): $d  -> commit, then re-run"
+    else
+      echo "SKIP (diverged, needs manual merge): $d"
+    fi
+  fi
+}
+
+echo "== parent =="
+pull_one .
+[ -f repos.txt ] || { echo "repos.txt not found"; exit 1; }
+echo "== modules =="
+while IFS= read -r f; do
+  case "$f" in ''|\#*) continue ;; esac
+  if [ ! -d "$f/.git" ]; then
+    if git clone -q "$GH/$f.git" "$f"; then
+      git -C "$f" remote add gitea "$GITEA/$f.git" 2>/dev/null || true
+      echo "cloned (was missing): $f"
+    else
+      echo "FAILED clone: $f"
+    fi
+    continue
+  fi
+  pull_one "$f"
+done < repos.txt