Code Farm: per-plot auto-replant pause and crop-lock check; community sync and node work

Continuous Delivery could never be turned off once a crop was planted. Add a
one-shot per-plot "stop after harvest" flag (POST /game/plot/stop, Devii tool
game_plot_stop, game_plots.stop_after_harvest), cleared by the next plant,
autoreplant claim or Refactor. Autoreplant now also respects crop locks through
the shared _crop_lock predicate. Plan and measurements in happyplanting.md.

Also includes the pending community sync, node network and related work in the
tree; the full suite passed (4999) with all of it.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

nodes/extension/build.sh

@@ -15,7 +15,7 @@ rm -f "$archive"
 
 cd "$here"
 if command -v zip >/dev/null 2>&1; then
-  zip -q -X -r "$archive" manifest.json src ui README.md
+  zip -q -X -r "$archive" manifest.json src ui icons README.md
 else
   python3 - "$archive" <<'PY'
 import sys
@@ -24,7 +24,7 @@ from pathlib import Path
 
 archive = sys.argv[1]
 paths = [Path("manifest.json"), Path("README.md")]
-for folder in ("src", "ui"):
+for folder in ("src", "ui", "icons"):
     paths.extend(sorted(item for item in Path(folder).rglob("*") if item.is_file()))
 with zipfile.ZipFile(archive, "w", zipfile.ZIP_DEFLATED) as bundle:
     for path in paths: