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/src/spec.js

@@ -65,10 +65,19 @@ export const REFUSALS = Object.freeze({
   BANDWIDTH_EXHAUSTED: "bandwidth_exhausted",
   CONCURRENCY_EXCEEDED: "concurrency_exceeded",
   OUTSIDE_HOURS: "outside_hours",
+  ON_BATTERY: "on_battery",
   BODY_TOO_LARGE: "body_too_large",
   TIMEOUT: "timeout",
 });
 
+export const SUSPENSION = Object.freeze({
+  reason: "suspended",
+  min_seconds: 60,
+  max_seconds: 24 * 60 * 60,
+  default_seconds: 300,
+  jitter_seconds: 30,
+});
+
 export const FETCH_FAILED = "fetch_failed";
 
 export const SERVER_FRAMES = Object.freeze({