fix(#1324): resolve glued phase tokens (#1353)

.changeset/1324-glued-phase-token.md

@@ -0,0 +1,6 @@
+---
+type: Fixed
+pr: 1353
+---
+
+**Glued letter-prefix phase directories now resolve correctly** -- phase lookup now recognizes tokens like `P0.3` and `M1-2` from directory names, so phase commands can find their plans instead of reporting none found. (#1324)

src/phase-id.cts

@@ -174,7 +174,7 @@ function extractPhaseToken(dirName: string): string {
   const tokenSegments: string[] = [];
   for (let i = 0; i < segments.length; i++) {
     const seg = segments[i];
-    if (/^\d/.test(seg)) {
+    if (/^\d/.test(seg) || (i === 0 && /^[A-Za-z]{1,3}\d/.test(seg))) {
       tokenSegments.push(seg);
     } else {
       break;

tests/phase-id.test.cjs

@@ -185,9 +185,17 @@ describe('extractPhaseToken', () => {
     assert.strictEqual(phaseId.extractPhaseToken('PROJ-12-feature'), 'PROJ-12');
   });
 
+  test('extracts glued letter-prefix phase tokens (#1324)', () => {
+    assert.strictEqual(phaseId.extractPhaseToken('P0.3-tenant-primitives'), 'P0.3');
+    assert.strictEqual(phaseId.extractPhaseToken('P0.0-foundation'), 'P0.0');
+    assert.strictEqual(phaseId.extractPhaseToken('P0.16-gate'), 'P0.16');
+    assert.strictEqual(phaseId.extractPhaseToken('M1-2-brain'), 'M1-2');
+  });
+
   test('returns the full dirName when no numeric token found', () => {
     assert.strictEqual(phaseId.extractPhaseToken('no-numeric'), 'no-numeric');
     assert.strictEqual(phaseId.extractPhaseToken('alpha'), 'alpha');
+    assert.strictEqual(phaseId.extractPhaseToken('phase-name-01'), 'phase-name-01');
   });
 
   test('stops at first non-numeric-starting segment', () => {
@@ -209,6 +217,12 @@ describe('phaseTokenMatches', () => {
     assert.ok(phaseId.phaseTokenMatches('PROJ-12-feature', '12'));
   });
 
+  test('matches glued letter-prefix phase dirs (#1324)', () => {
+    assert.ok(phaseId.phaseTokenMatches('P0.3-tenant-primitives', 'P0.3'));
+    assert.ok(phaseId.phaseTokenMatches('M1-2-brain', 'M1-2'));
+    assert.ok(!phaseId.phaseTokenMatches('P0.3-tenant-primitives', 'P0.4'));
+  });
+
   test('does not match when token differs', () => {
     assert.ok(!phaseId.phaseTokenMatches('01-some-phase', '02'));
     assert.ok(!phaseId.phaseTokenMatches('12A-feature', '12B'));
@@ -386,4 +400,3 @@ describe('getPhaseDirFromPhaseId', () => {
     assert.ok(!result.endsWith('-'));
   });
 });
-