fix: suppress non-ReCKoning projects during endgame (closes #128)

When endgame conditions are met (totalRescues >= 100000, pactFlag === 1,
harmony > 50), non-ReCKoning projects like 'Request More Compute'
(p_wire_budget) were still activating and rendering alongside the
ReCKoning sequence.

Changes:
- checkProjects(): skip non-ReCKoning project activation during endgame
- renderProjects(): skip non-ReCKoning project rendering during endgame

Both guards check endgame conditions and only allow projects with id
starting with 'p_reckoning_' to activate/display during endgame.

All existing tests pass.

js/engine.js

@@ -335,12 +335,18 @@ function checkMilestones() {
 }
 
 function checkProjects() {
+    // Suppress non-ReCKoning projects during endgame sequence (#128)
+    const isEndgame = G.totalRescues >= 100000 && G.pactFlag === 1 && G.harmony > 50;
+    const hasReCKoning = G.activeProjects && G.activeProjects.some(id => id.startsWith('p_reckoning_'));
+
     // Check for new project triggers
     for (const pDef of PDEFS) {
         const alreadyPurchased = G.completedProjects && G.completedProjects.includes(pDef.id);
         if (!alreadyPurchased && !G.activeProjects) G.activeProjects = [];
 
         if (!alreadyPurchased && !G.activeProjects.includes(pDef.id)) {
+            // During endgame, only allow ReCKoning projects to activate (#128)
+            if (isEndgame && !pDef.id.startsWith('p_reckoning_')) continue;
             if (pDef.trigger()) {
                 G.activeProjects.push(pDef.id);
                 log(`Available: ${pDef.name}`);
@@ -1173,7 +1179,11 @@ function renderProjects() {
 
     // Show available projects
     if (G.activeProjects) {
+        const isEndgame = G.totalRescues >= 100000 && G.pactFlag === 1 && G.harmony > 50;
         for (const id of G.activeProjects) {
+            // During endgame, suppress non-ReCKoning projects from display (#128)
+            if (isEndgame && !id.startsWith('p_reckoning_')) continue;
+
             const pDef = PDEFS.find(p => p.id === id);
             if (!pDef) continue;