build 0.2.3 — Once Upon The Universe Steam update #1329010

Fix the repeated building type created by civilizations within the new building system. Improved maintenance crisis handling so Space Agencies can be disabled and restored instead of being lost, matching Observatory behavior. Civilizations now gain a small passive amount of Science Points every tick, while Observatories and Advanced Studies Academies are protected from industrial maintenance crisis shutdown/removal. Stellar Stabilization and Infinite Fusion cost and power adjusted. Improved Impact Probe guidance feedback: blocked actions now show the exact reason, and Impact Probe targeting has been separated into its own context-menu page with clear planet/star rules. Intersector Exploration now correctly requires Automated Probes in addition to Deep Space Telescopes and Interplanetary Colonization.