fix(v0.3.1): mechanical food/stuck fixes — bot reaches the chicken now

The wedge wasn't only in the manifesto layer; several mechanical bugs
kept the bot in a dead random-walk:

- storyline / manifesto / curriculum: "local food" now means an edible
  passive mob within <=32 blocks. A distant chicken or a cod no longer
  fools the bot into dispatching acquire-food (which then fails on
  no_path). Long-range food goes through scout-food instead.

- scout-food: partial approach to a target now counts as progress
  (approached_target, e.g. moved:14); a blocked heading is NOT counted
  as movement; added blind/tunnel fallback so it doesn't die when the
  pathfinder can't route cleanly.

- acquire-food: on no_path it now also tries a blind/tunnel approach to
  the animal; no_drop routes back into food scouting instead of giving
  up.

- explore.far / relocate / flee: fewer false "done" results (micro-steps
  no longer counted as success), more genuine escapes from stuck.

- scripts/show-story.js: live IPC now actually renders the current
  storyline step.

Verification: scripts/lint-patch.js clean; npm test 404/404 green; bot
relaunched in tmux `pepa`. Live logs show real progress — bot switched
to survive.scout-food, approached the chicken (approached_target
moved:14), then reached survive.acquire-food: hunting chicken. Food
isn't fully closed yet but the remaining issue is concrete pickup/drop,
not dead random-walk.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

runtime/skills/explore-far.js

@@ -90,16 +90,6 @@ export const skill = Object.freeze({
 		}
 		info("action", `explore.far: cardinal probe trials=${trials.map((t) => `${t.name}:${t.dist.toFixed(1)}`).join(" ")} best=${best.name}`);
 
-		const probeMoved = horizontalDistance(beforeProbe, bot.entity.position);
-		if (probeMoved >= 2) {
-			return {
-				ok: true,
-				code: "done",
-				detail: { mode: "probe-moved", dir: best.name, moved: probeMoved },
-				worldDelta: { movedTo: clonePos(bot.entity.position) },
-			};
-		}
-
 		if (best.dist < 0.5) {
 			// All cardinals blocked. Try the cheap vertical escape first; if it
 			// does not actually move us, carve a short horizontal tunnel. The
@@ -122,7 +112,8 @@ export const skill = Object.freeze({
 		return blindWalkOrTunnelOut(bot, {
 			yaw: best.yaw,
 			dirName: best.name,
-			blindMs: args.blindMs ?? 7_000,
+			blindMs: args.blindMs ?? 20_000,
+			minMove: args.minMove ?? Math.min(14, Math.max(8, dist * 0.25)),
 			tunnelPushMs: args.tunnelPushMs,
 			reason: `explore.far blind ${best.name}`,
 			intended: { x: tx, y: ty, z: tz },
@@ -130,7 +121,7 @@ export const skill = Object.freeze({
 	},
 });
 
-async function blindWalkOrTunnelOut(bot, { yaw, dirName, blindMs = 7_000, minMove = 0.75, tunnelPushMs, reason = "blind fallback", intended = null } = {}) {
+export async function blindWalkOrTunnelOut(bot, { yaw, dirName, blindMs = 7_000, minMove = 0.75, tunnelPushMs, reason = "blind fallback", intended = null } = {}) {
 	const before = clonePos(bot.entity.position);
 	try { await bot.look(yaw, 0, true); } catch {}
 	bot.setControlState("forward", true);