Dev console: money, items, upgrades, free build, speed (t66)

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

src/manifest.json

@@ -1,7 +1,8 @@
 {
   "shell": "shell.html",
   "css": [
-    "styles/style.css"
+    "styles/style.css",
+    "styles/devconsole.css"
   ],
   "sim": [
     "sim/base.js",
@@ -38,6 +39,7 @@
     "sim/tick.js",
     "sim/worldgen-helpers.js",
     "sim/worldgen.js",
+    "sim/devconsole.js",
     "sim/save.js"
   ],
   "client": [
@@ -67,6 +69,7 @@
     "ui/selection-pickers.js",
     "ui/selection-panels.js",
     "ui/info.js",
+    "ui/devconsole.js",
     "ui/input.js",
     "ui/actions.js",
     "ui/gamepad.js",