Add test-all.sh runner; fix bootstrap idempotency flake and test isolation

- test-all.sh: single entry point running all four test suites (51 checks),
  non-zero exit on any failure, --verbose shows failing suite output.
- repo-bootstrap.sh: write_meta now compares stable fields excluding the
  second-resolution generated_at timestamp, so two runs straddling a second
  boundary no longer rewrite .bootstrap-meta (T02 idempotency flake fixed).
- test-integration.sh: pre-clean memory residue before I01/I02 so checks are
  independent of prior interrupted-run state.
- README.md: document test-all.sh as the top-level test entry point.

scripts/test-all.sh

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+#
+# test-all.sh — Run every test suite in the repo and report a combined result.
+#
+#   bash scripts/test-all.sh
+#
+# Exit code: 0 if all suites pass, non-zero if any suite fails.
+# Optional: pass --verbose to show each suite's full output on failure.
+
+set -uo pipefail
+TEAM_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+VERBOSE=0
+[ "${1:-}" = "--verbose" ] && VERBOSE=1
+
+SUITES=(test-agent-architecture test-memory-system test-repo-bootstrap test-integration)
+
+BOLD=""
+RESET=""
+if [ -t 1 ]; then
+  BOLD="\033[1m"
+  RESET="\033[0m"
+fi
+
+pass=0; fail=0
+printf "${BOLD}=== Agent Team: full test run ===${RESET}\n\n"
+
+for s in "${SUITES[@]}"; do
+  script="$TEAM_ROOT/scripts/$s.sh"
+  if [ ! -f "$script" ]; then
+    printf "  %-28s ${BOLD}MISSING${RESET}\n" "$s"
+    fail=$((fail + 1))
+    continue
+  fi
+  out="$(bash "$script" 2>&1)"
+  rc=$?
+
+  # Count individual PASS/FAIL lines (uniform format: "PASS  T01 ..." / "PASS  I01 ...";
+  # excludes the summary lines that also start with "PASS:"/"FAIL:").
+  npass="$(printf '%s\n' "$out" | grep -cE '^PASS  [TI]' || true)"
+  nfail="$(printf '%s\n' "$out" | grep -cE '^FAIL  [TI]' || true)"
+
+  if [ "$rc" = "0" ]; then
+    printf "  %-28s ${BOLD}PASS${RESET}  (%s checks)\n" "$s" "$npass"
+    pass=$((pass + 1))
+  else
+    printf "  %-28s ${BOLD}FAIL${RESET}  (%s check(s) failed)\n" "$s" "$nfail"
+    fail=$((fail + 1))
+    if [ "$VERBOSE" = "1" ]; then
+      printf '\n--- %s output ---\n%s\n--------------------------\n' "$s" "$out"
+    fi
+  fi
+done
+
+printf '\n%s=== RESULT ===%s\n' "$BOLD" "$RESET"
+printf 'suites passed: %d   suites failed: %d   (total %d suites)\n' \
+  "$pass" "$fail" "${#SUITES[@]}"
+
+if [ "$fail" = "0" ]; then
+  printf 'ALL SUITES PASS\n'
+  exit 0
+else
+  printf 'FAILURES PRESENT\n'
+  exit 1
+fi