Share the target filter, fix cd-status branch, record deploy status

- enabled_targets/names_for: one implementation of 'a host acts only on its
  own targets'; --host s5 and --host s5.fisher.hu now select the same targets
- shell_value: JSON booleans reach shell consumers as true/false
- cd-status: capture before eval, so the unconfigured-host branch is reachable
- cd-deploy writes a .status record; cd-status reads it instead of grepping
  the log's prose
- cd-render-hooks --list-urls replaces two inline JSON readers

bin/cd-status

@@ -17,7 +17,10 @@ readonly UNIT_NAME="cd-webhook.service"
 bold() { printf '\n\033[1m%s\033[0m\n' "$*"; }
 
 bold "Host"
-if eval "$("${REPO_ROOT}/bin/cd-target" host-config 2>/dev/null)"; then
+# Capture first: `eval ""` succeeds, so evaluating the failed call inline made
+# the branch below unreachable and tripped `set -u` instead.
+if host_config="$("${REPO_ROOT}/bin/cd-target" host-config 2>/dev/null)"; then
+    eval "$host_config"
     printf '  %s, receiver on %s:%s\n' "$CD_HOST" "$CD_BIND" "$CD_PORT"
 else
     printf '  %s is not configured in targets.json\n' "$(hostname)"
@@ -41,12 +44,8 @@ fi
 
 if [[ -f "${CONFIG_DIR}/hooks.json" ]]; then
     bold "Hook endpoints"
-    python3 - "${CONFIG_DIR}/hooks.json" <<'PY'
-import json, sys
-with open(sys.argv[1]) as fh:
-    for hook in json.load(fh):
-        print(f"  /hooks/{hook['id']}")
-PY
+    "${REPO_ROOT}/bin/cd-render-hooks" --list-urls \
+        --output "${CONFIG_DIR}/hooks.json" | sed 's/^/  /'
 fi
 
 bold "Targets on this host"
@@ -55,10 +54,13 @@ if [[ ${#targets[@]} -eq 0 ]]; then
     printf '  none\n'
 else
     for target in "${targets[@]}"; do
-        log="${STATE_DIR}/${target}.log"
-        if [[ -f "$log" ]]; then
-            last="$(grep -E '=== deploy succeeded|ERROR|WARN  health' "$log" | tail -n1 || true)"
-            printf '  %-22s %s\n' "$target" "${last:-no completed deploy recorded}"
+        # cd-deploy writes this on every terminal outcome. Reading a record
+        # beats grepping the log for phrases the log is free to reword.
+        status_file="${STATE_DIR}/${target}.status"
+        if [[ -f "$status_file" ]]; then
+            IFS=$'\t' read -r when result sha message < "$status_file" || true
+            printf '  %-22s %s  %-4s %s  %s\n' \
+                "$target" "$when" "$result" "$sha" "$message"
         else
             printf '  %-22s %s\n' "$target" "never deployed from this host"
         fi