fix: improve error messages for unresolved tasks-template

Author: Nimraakram12

scripts/bash/setup-tasks.sh

@@ -55,7 +55,8 @@ fi
 # Resolve tasks template through override stack
 TASKS_TEMPLATE=$(resolve_template "tasks-template" "$REPO_ROOT") || true
 if [[ -z "$TASKS_TEMPLATE" ]] || [[ ! -f "$TASKS_TEMPLATE" ]]; then
-    echo "Error: could not resolve required tasks-template in $REPO_ROOT" >&2
+    echo "ERROR: Could not resolve required tasks-template in $REPO_ROOT" >&2
+    echo "Expected shared core template at .specify/templates/tasks-template.md; run 'specify init' or reinstall shared infra to restore it." >&2
     exit 1
 fi
 

scripts/powershell/setup-tasks.ps1

@@ -48,7 +48,8 @@ if (Test-Path $paths.QUICKSTART) { $docs += 'quickstart.md' }
 # Resolve tasks template through override stack
 $tasksTemplate = Resolve-Template -TemplateName 'tasks-template' -RepoRoot $paths.REPO_ROOT
 if (-not $tasksTemplate) {
-    Write-Error "Tasks template not found in $($paths.REPO_ROOT)"
+    $expectedCoreTemplate = Join-Path $paths.REPO_ROOT '.specify/templates/tasks-template.md'
+    Write-Error "Tasks template not found for repository root: $($paths.REPO_ROOT)`nExpected shared/core template location: $expectedCoreTemplate`nTo continue, restore the shared templates (for example by re-running 'specify init') so that '.specify/templates/tasks-template.md' exists, or add a valid tasks-template override."
     exit 1
 }