Repair a broken working tree, and make every crafter press report

The crafter buttons doing nothing was not the crafter: Ship.gd was left
mid-edit and failed to parse (undeclared SHIELD_COLOR/SHIELD_RADIUS, and
a spawn() that only exists on the concrete VFX subclass). A script that
does not compile takes Main.tscn's whole node tree with it, so every
button in the game was dead. The project directory is the one being
played from, so an unfinished edit there is a broken build - finish or
revert before stopping.

With that fixed, the real gap underneath: an order the crafter cannot
pay for is ACCEPTED and queued (#16), which is indistinguishable from a
dead button. Ordering now reports either "building now" or "queued - N
more ore must be delivered here", and the transient message is rendered
LAST so it is the first line read rather than buried under the standing
fleet-capacity note.

test_crafter_feedback covers all three presses and asserts the message
survives the per-frame refresh, which is the specific way this looked
broken before.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/test_modal_blocks_input.gd.uid

@@ -0,0 +1 @@
+uid://gr4k23bre8b6