fix: findProjectRoot returns startDir when it already has .planning/

When cwd is a git repo inside a GSD workspace, findProjectRoot() walked
up and returned the workspace parent (which also has .planning/) instead
of the cwd itself. This caused all init commands to resolve project_root
to the workspace root, making phase/roadmap lookups fail with "Phase not
found" errors.

The fix adds an early return: if startDir already contains a .planning/
directory, it is the project root — no need to walk up to a parent.

Fixes #1362

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

get-shit-done/bin/lib/core.cjs

@@ -58,6 +58,13 @@ function findProjectRoot(startDir) {
   const root = path.parse(resolved).root;
   const homedir = require('os').homedir();
 
+  // If startDir already contains .planning/, it IS the project root.
+  // Do not walk up to a parent workspace that also has .planning/ (#1362).
+  const ownPlanning = path.join(resolved, '.planning');
+  if (fs.existsSync(ownPlanning) && fs.statSync(ownPlanning).isDirectory()) {
+    return startDir;
+  }
+
   // Check if startDir or any of its ancestors (up to AND including the
   // candidate project root) contains a .git directory. This handles both
   // `backend/` (direct sub-repo) and `backend/src/modules/` (nested inside),

tests/core.test.cjs

@@ -1509,6 +1509,33 @@ describe('findProjectRoot', () => {
 
     assert.strictEqual(findProjectRoot(projectRoot), projectRoot);
   });
+
+  test('does not walk past child with own .planning/ to workspace parent (#1362)', () => {
+    // Workspace layout: parent has .planning/, child git repo also has .planning/
+    // findProjectRoot should return the child (startDir), not the parent
+    fs.mkdirSync(path.join(projectRoot, '.planning'), { recursive: true });
+
+    const childRepo = path.join(projectRoot, 'authenticator');
+    fs.mkdirSync(path.join(childRepo, '.planning'), { recursive: true });
+    fs.mkdirSync(path.join(childRepo, '.git'), { recursive: true });
+
+    assert.strictEqual(findProjectRoot(childRepo), childRepo);
+  });
+
+  test('does not walk past nested dir whose git root has .planning/ (#1362)', () => {
+    // Workspace layout: parent has .planning/, child git repo also has .planning/
+    // cwd is deep inside child — should resolve to child root, not workspace root
+    fs.mkdirSync(path.join(projectRoot, '.planning'), { recursive: true });
+
+    const childRepo = path.join(projectRoot, 'authenticator');
+    fs.mkdirSync(path.join(childRepo, '.planning'), { recursive: true });
+    fs.mkdirSync(path.join(childRepo, '.git'), { recursive: true });
+
+    const deepDir = path.join(childRepo, 'src', 'lib');
+    fs.mkdirSync(deepDir, { recursive: true });
+
+    assert.strictEqual(findProjectRoot(deepDir), childRepo);
+  });
 });
 
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