Stage‑B alias/table negatives + Bridge v1 Closure negatives + docs sweep (minor)

- BundleResolver: fail-fast with tag on malformed alias table entries ([bundle/alias-table/bad] <entry>)
- Add opt-in negatives:
  - canonicalize_closure_captures_negative_vm (captures wrong types)
  - canonicalize_closure_missing_func_negative_vm (missing func in Closure)
  - stageb_bundle_alias_table_bad_vm (malformed alias table)
- README minor replacements to  (residuals)

All new tests are opt-in; quick remains green.

lang/src/compiler/entry/bundle_resolver.hako

@@ -22,16 +22,14 @@ static box BundleResolver {
           local pos = -1
           local k = 0
           loop(k < seg.length()) { if seg.substring(k,k+1) == ":" { pos = k break } k = k + 1 }
-          if pos >= 0 {
-            local name = seg.substring(0, pos)
-            local code = seg.substring(pos+1, seg.length())
-            if name != "" && code != "" {
-              if bundle_names == null { bundle_names = new ArrayBox() }
-              if bundle_mod_srcs == null { bundle_mod_srcs = new ArrayBox() }
-              bundle_names.push(name)
-              bundle_mod_srcs.push(code)
-            }
-          }
+          if pos < 0 { print("[bundle/alias-table/bad] " + seg) return null }
+          local name = seg.substring(0, pos)
+          local code = seg.substring(pos+1, seg.length())
+          if name == "" || code == "" { print("[bundle/alias-table/bad] " + seg) return null }
+          if bundle_names == null { bundle_names = new ArrayBox() }
+          if bundle_mod_srcs == null { bundle_mod_srcs = new ArrayBox() }
+          bundle_names.push(name)
+          bundle_mod_srcs.push(code)
         }
         if j < 0 { break }
         i = j + 3

tools/smokes/v2/profiles/quick/core/bridge/canonicalize_closure_missing_func_negative_vm.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# canonicalize_closure_missing_func_negative_vm.sh — v1 bridge Closure missing func should fail
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+if ROOT_GIT=$(git -C "$SCRIPT_DIR" rev-parse --show-toplevel 2>/dev/null); then
+  ROOT="$ROOT_GIT"
+else
+  ROOT="$(cd "$SCRIPT_DIR/../../../../../../../../.." && pwd)"
+fi
+source "$ROOT/tools/smokes/v2/lib/test_runner.sh"
+require_env || exit 2
+
+# Opt-in with SMOKES_ENABLE_BRIDGE_CLOSURE=1
+if [ "${SMOKES_ENABLE_BRIDGE_CLOSURE:-0}" != "1" ]; then
+  test_skip canonicalize_closure_missing_func_negative_vm "opt-in (SMOKES_ENABLE_BRIDGE_CLOSURE=1)"
+  exit 0
+fi
+
+json_path="/tmp/ny_v1_closure_caps_missing_func_$$.json"
+cat >"$json_path" <<'JSON'
+{"schema_version":"1.0","functions":[{"name":"main","blocks":[{"id":0,"instructions":[
+  {"op":"mir_call","dst":3,
+    "callee":{"type":"Closure","captures":[1,2]},
+    "args":[1,2]},
+  {"op":"ret"}
+]}]}]}
+JSON
+
+set +e
+HAKO_NYVM_V1_DOWNCONVERT=1 "$NYASH_BIN" --json-file "$json_path" >/dev/null 2>&1
+rc=$?
+set -e
+rm -f "$json_path"
+
+if [ "$rc" != 0 ]; then
+  echo "[PASS] canonicalize_closure_missing_func_negative_vm"
+  exit 0
+else
+  echo "[FAIL] canonicalize_closure_missing_func_negative_vm (unexpected rc=0)" >&2
+  exit 1
+fi
+