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/tools/make_icons.py

@@ -0,0 +1,43 @@
+import sys
+from pathlib import Path
+
+from PIL import Image, ImageDraw
+
+SIZES = (16, 32, 48, 128)
+SCALE = 8
+BACKGROUND = (17, 43, 94, 255)
+GLYPH = (234, 242, 255, 255)
+CENTER = (0.5, 0.5)
+OUTER = ((0.5, 0.2), (0.24, 0.68), (0.76, 0.68))
+CORNER_RADIUS = 0.22
+CENTER_RADIUS = 0.1
+OUTER_RADIUS = 0.075
+LINE_WIDTH = 0.04
+
+
+def render(size: int) -> Image.Image:
+    big = size * SCALE
+    image = Image.new("RGBA", (big, big), (0, 0, 0, 0))
+    draw = ImageDraw.Draw(image)
+    draw.rounded_rectangle((0, 0, big - 1, big - 1), radius=big * CORNER_RADIUS, fill=BACKGROUND)
+
+    def point(pair):
+        return (pair[0] * big, pair[1] * big)
+
+    for outer in OUTER:
+        draw.line((point(CENTER), point(outer)), fill=GLYPH, width=max(1, round(LINE_WIDTH * big)))
+    for pair, radius in [(CENTER, CENTER_RADIUS)] + [(outer, OUTER_RADIUS) for outer in OUTER]:
+        x, y = point(pair)
+        r = radius * big
+        draw.ellipse((x - r, y - r, x + r, y + r), fill=GLYPH)
+    return image.resize((size, size), Image.LANCZOS)
+
+
+def main(out_dir: Path) -> None:
+    out_dir.mkdir(parents=True, exist_ok=True)
+    for size in SIZES:
+        render(size).save(out_dir / f"icon-{size}.png", optimize=True)
+
+
+if __name__ == "__main__":
+    main(Path(sys.argv[1]) if len(sys.argv) > 1 else Path(__file__).resolve().parent.parent / "icons")