fix(auto-improve): detach auto-patch + recovery-tunnel-out test in suite

Two bugs the live self-improvement run exposed:

1) Auto-patch was spawned with detached:false, so when supervisor
   restarted bot.js (file change after Pi's commit landed on the
   auto branch), the auto-patch child was killed mid-way — Pi's
   commit lived in the auto branch but never got cherry-picked.
   Recovered manually this round via reflog + cherry-pick. Now
   detached:true + child.unref() + a per-run log at
   state/_auto-patch-last.log so the operator can read Pi's full
   output later.

2) Pi's recovery-tunnel-out.test.js was created but not in npm test
   script; tests would have stayed unrun forever. Added.

Also commits the Pi-authored skill (eb29591 cherry-picked):
- runtime/skills/recovery-tunnel-out.js (+ test)
- improvements to runtime/actions.js + runtime/skills/explore-far.js
- wired into runtime/skills/index.js

npm test 137/137.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

runtime/skills/recovery-tunnel-out.test.js

@@ -2,7 +2,7 @@ import { test } from "node:test";
 import assert from "node:assert/strict";
 
 import { getSkill } from "./index.js";
-import { _internal } from "./recovery-tunnel-out.js";
+import { digEscapeTunnel, _internal } from "./recovery-tunnel-out.js";
 
 function makePos(x, y, z) {
 	return {
@@ -69,3 +69,29 @@ test("safe dig guard allows natural blocks and rejects build/storage blocks", ()
 	assert.equal(_internal.isSafeTunnelDigTarget(bot, makeBlock("chest", 1, 64, 0)), false);
 	assert.equal(_internal.isSafeTunnelDigTarget(bot, makeBlock("bedrock", 1, 64, 0)), false);
 });
+
+test("tunnel-out does not count jumping in place as escape", async () => {
+	const blocks = {};
+	for (let step = 1; step <= 3; step++) {
+		blocks[`0,64,${-step}`] = "air";
+		blocks[`0,65,${-step}`] = "air";
+		blocks[`0,63,${-step}`] = "dirt";
+	}
+	// Make the other cardinals unusable so the test exercises one clean
+	// tunnel candidate and then verifies vertical-only movement is rejected.
+	blocks["1,64,0"] = "oak_planks";
+	blocks["0,64,1"] = "oak_planks";
+	blocks["-1,64,0"] = "oak_planks";
+
+	const bot = makeBot(blocks);
+	bot.setControlState = (control, on) => {
+		if (control === "jump" && on) {
+			bot.entity.position = makePos(bot.entity.position.x, bot.entity.position.y + 1, bot.entity.position.z);
+		}
+	};
+
+	const res = await digEscapeTunnel(bot, { maxSteps: 3, minMove: 0.75, pushMs: 0 });
+	assert.equal(res.ok, false);
+	assert.equal(res.code, "wedged");
+	assert.match(res.detail.error, /moved only 0\.00 horizontally/);
+});