feat: implement directional alignment predicate evaluators (no more NYI)

- Replace makeNotImplementedPredicate stubs for leftAlignedWith,
  rightAlignedWith, topAlignedWith, bottomAlignedWith with real
  evaluators delegating to alignedWithPredicate with axis option
- Update logic-engine.test.ts to expect real evaluation results
  instead of IMH_FEATURE_NOT_YET_IMPLEMENTED

packages/imhotep-solver/src/logic-engine.test.ts

@@ -361,7 +361,7 @@ describe('predicate calls', () => {
     assert.ok(!result.diagnostics.some((d) => d.code === 'IMH_FEATURE_NOT_YET_IMPLEMENTED'));
   });
 
-  it('returns not-yet-implemented for aligned-with variants', () => {
+  it('evaluates aligned-with directional variants correctly', () => {
     const world = makeWorld();
     const variants = ['leftAlignedWith', 'rightAlignedWith', 'topAlignedWith', 'bottomAlignedWith'];
     for (const variant of variants) {
@@ -391,11 +391,12 @@ describe('predicate calls', () => {
       };
 
       const result = evaluateLogic(input);
-      assert.strictEqual(result.passed, false, `Expected ${variant} to fail`);
-      assert.ok(
-        result.diagnostics.some((d) => d.code === 'IMH_FEATURE_NOT_YET_IMPLEMENTED'),
-        `Expected ${variant} to produce IMH_FEATURE_NOT_YET_IMPLEMENTED`
-      );
+      // Elements 1 (0,0,100,40) and 2 (110,50,210,90) are not aligned
+      // on any side, so all directional alignments should produce determinate
+      // false results (not IMH_FEATURE_NOT_YET_IMPLEMENTED).
+      assert.strictEqual(result.passed, false, `Expected ${variant} to evaluate, not return NYI`);
+      assert.strictEqual(result.formulaResults.length, 1);
+      assert.strictEqual(result.formulaResults[0].outcome, 'fail');
     }
   });
 });