Vacuum: one selection for pick-up and blow, full list while Ctrl is held (t20)

With anything selected a drag takes only the selection; with nothing
selected it takes what you click. Right click blows the selected materials
in the bag. Holding Ctrl lists every material found so far under "Not in
bag". Selections stay when materials run out; Clear button, clicking the
only selected row, or gamepad B clears.

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

src/sim/progress.js

@@ -22,7 +22,7 @@ const STARTER_DESIGNS = [
 
 // ---------- Milestones ----------
 const MILESTONES = [
-  { id: 'dig', title: 'Break ground', msg: 'Broken material falls loose. The Vacuum (2) picks up what you click. Click or Q/E in the bag chooses the hand; Ctrl+click mixes, Shift takes or blows everything.', hint: 'Hold the left mouse button with the Drill (1): it sends pulses at the cursor that shake rock until it shatters. It falls as rubble, ore and coal.' },
+  { id: 'dig', title: 'Break ground', msg: 'Broken material falls loose. The Vacuum (2) picks up and blows the selection. Click or Q/E in the bag selects; Ctrl+click mixes. Hold Ctrl to see everything found. Clear returns to picking what you click. Shift: everything.', hint: 'Hold the left mouse button with the Drill (1): it sends pulses at the cursor that shake rock until it shatters. It falls as rubble, ore and coal.' },
   { id: 'fire', title: 'First fire', hint: 'Vacuum up coal or wood chunks, blow a pile out with right click, then hold the Igniter (4) on it. Fuel only burns where it touches open air.', reward: 'Thermal lens unlocked. Press H to see heat.' },
   { id: 'brick', title: 'Fired brick', hint: 'Clay turns into brick after a while above about 900°C, hotter than an open wood fire gets. Blow clay lumps into a coal fire, best walled in like a furnace, and vacuum up the brick rubble. Brick rubble builds brick blocks.', reward: 'Brick insulates far better than stone and survives 1750°C.' },
   { id: 'charcoal', title: 'Charcoal', hint: 'Wood that gets hot without air turns into charcoal instead of burning. Bury a burning pile of wood chunks under dirt, or heat a sealed box of wood chunks from outside.', reward: 'A fuel you can grow: nearly as hot as coal.' },

src/sim/vacuum.js

@@ -46,12 +46,12 @@ function toolBlow(cx, cy, r, m, mix) {
   let pickM = null;
   if (mix && mix.length) {
     const avail = mix.filter(k => bag[k] > 0 && PH[k] !== PH_ITEM && (PH[k] !== PH_LIQUID || player.flask));
-    if (!avail.length) return { placed: 0, status: 'Nothing in hand: Q/E or click something in the bag.' };
+    if (!avail.length) return { placed: 0, status: 'None of the selected materials are in the bag.' };
     pickM = () => { for (let k = 0; k < avail.length; k++) { const c = avail[(blowRR++) % avail.length]; if (bag[c] > 0) return c; } return 0; };
     m = avail[0];
   }
-  if (!m) return { placed: 0, status: 'Nothing in hand: Q/E or click something in the bag.' };
-  if (bag[m] <= 0) return { placed: 0, status: `No ${MD[m].name.toLowerCase()} left.` };
+  if (!m) return { placed: 0, status: 'Nothing selected: click or Q/E in the bag.' };
+  if (bag[m] <= 0) return { placed: 0, status: 'None of the selected materials are in the bag.' };
   const ph = PH[m];
   if (ph === PH_LIQUID && !player.flask) return { placed: 0, status: 'You need the Flask to carry liquids.' };
   const nz = nozzle(cx + 0.5, cy + 0.5);