fix(verify): add CWD guard and strip archived milestones in health checks (#1076)

Two fixes to verify.cjs:

1. Add CWD guard to cmdValidateHealth — detects when CWD is the home
   directory (likely accidental) and returns error E010 before running
   checks that would read the wrong .planning/ directory.

2. Import and apply stripShippedMilestones to both cmdValidateConsistency
   and cmdValidateHealth (Check 8) — prevents false warnings when
   archived milestones reuse phase numbers.

This PR subsumes #1071 (strip archived milestones) to avoid merge
conflicts on the same import line.

Addresses patch 2 from #899, fixes #1060

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

@@ -4,7 +4,8 @@
 
 const fs = require('fs');
 const path = require('path');
-const { safeReadFile, normalizePhaseName, execGit, findPhaseInternal, getMilestoneInfo, output, error } = require('./core.cjs');
+const os = require('os');
+const { safeReadFile, normalizePhaseName, execGit, findPhaseInternal, getMilestoneInfo, stripShippedMilestones, output, error } = require('./core.cjs');
 const { extractFrontmatter, parseMustHavesBlock } = require('./frontmatter.cjs');
 const { writeStateMd } = require('./state.cjs');
 
@@ -407,9 +408,10 @@ function cmdValidateConsistency(cwd, raw) {
     return;
   }
 
-  const roadmapContent = fs.readFileSync(roadmapPath, 'utf-8');
+  const roadmapContentRaw = fs.readFileSync(roadmapPath, 'utf-8');
+  const roadmapContent = stripShippedMilestones(roadmapContentRaw);
 
-  // Extract phases from ROADMAP
+  // Extract phases from ROADMAP (archived milestones already stripped)
   const roadmapPhases = new Set();
   const phasePattern = /#{2,4}\s*Phase\s+(\d+[A-Z]?(?:\.\d+)*)\s*:/gi;
   let m;
@@ -515,6 +517,19 @@ function cmdValidateConsistency(cwd, raw) {
 }
 
 function cmdValidateHealth(cwd, options, raw) {
+  // Guard: detect if CWD is the home directory (likely accidental)
+  const resolved = path.resolve(cwd);
+  if (resolved === os.homedir()) {
+    output({
+      status: 'error',
+      errors: [{ code: 'E010', message: `CWD is home directory (${resolved}) — health check would read the wrong .planning/ directory. Run from your project root instead.`, fix: 'cd into your project directory and retry' }],
+      warnings: [],
+      info: [{ code: 'I010', message: `Resolved CWD: ${resolved}` }],
+      repairable_count: 0,
+    }, raw);
+    return;
+  }
+
   const planningDir = path.join(cwd, '.planning');
   const projectPath = path.join(planningDir, 'PROJECT.md');
   const roadmapPath = path.join(planningDir, 'ROADMAP.md');
@@ -679,7 +694,8 @@ function cmdValidateHealth(cwd, options, raw) {
   // ─── Check 8: Run existing consistency checks ─────────────────────────────
   // Inline subset of cmdValidateConsistency
   if (fs.existsSync(roadmapPath)) {
-    const roadmapContent = fs.readFileSync(roadmapPath, 'utf-8');
+    const roadmapContentRaw = fs.readFileSync(roadmapPath, 'utf-8');
+    const roadmapContent = stripShippedMilestones(roadmapContentRaw);
     const roadmapPhases = new Set();
     const phasePattern = /#{2,4}\s*Phase\s+(\d+[A-Z]?(?:\.\d+)*)\s*:/gi;
     let m;