fix: doctor checks follow redirect for Gas Town support (bd-tvus)

Extended bd-tvus fix to all doctor check functions that access .beads/
directory. In Gas Town multi-clone setups, crew/polecat clones use
.beads/redirect files to point to the shared mayor/rig beads directory.

Doctor checks now use resolveBeadsDir() to follow these redirects:
- daemon.go: CheckDaemonStatus
- git.go: CheckSyncBranchConfig, FindOrphanedIssues, CheckOrphanedIssues
- installation.go: CheckMultipleDatabases, CheckPermissions
- integrity.go: CheckIDFormat, CheckDependencyCycles, CheckTombstones,
  CheckDeletionsManifest, CheckRepoFingerprint
- jsonl_integrity.go: CheckJSONLIntegrity
- legacy.go: CheckFreshClone
- maintenance.go: CheckStaleClosedIssues, CheckExpiredTombstones,
  CheckCompactionCandidates
- perf.go: RunPerformanceDiagnostics, CollectPlatformInfo
- validation.go: CheckMergeArtifacts, CheckOrphanedDependencies,
  CheckDuplicateIssues, CheckTestPollution, CheckChildParentDependencies,
  CheckGitConflicts
- version.go: CheckMetadataVersionTracking

Intentionally NOT changed (check local files):
- CheckInstallation: checks local .beads/ exists
- CheckUntrackedBeadsFiles: checks git tracking of local files

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cmd/bd/doctor/legacy.go

@@ -369,7 +369,8 @@ func CheckDatabaseConfig(repoPath string) DoctorCheck {
 // A fresh clone has JSONL with issues but no database file.
 // bd-4ew: Recommend 'bd init --prefix <detected-prefix>' for fresh clones.
 func CheckFreshClone(repoPath string) DoctorCheck {
-	beadsDir := filepath.Join(repoPath, ".beads")
+	// Follow redirect to resolve actual beads directory (bd-tvus fix)
+	beadsDir := resolveBeadsDir(filepath.Join(repoPath, ".beads"))
 
 	// Check if .beads/ exists
 	if _, err := os.Stat(beadsDir); os.IsNotExist(err) {