fix(ego-lint): guard awk command substitutions against set -e abort

Bare `var=$(cmd)` under `set -euo pipefail` aborts the script if cmd
returns non-zero. Add `|| true` to both minified-js awk invocations.
Also add a boundary test fixture (2 long lines, below 3-line threshold).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ZviBaratz

skills/ego-lint/scripts/ego-lint.sh

@@ -424,7 +424,7 @@ for f in "$EXT_DIR"/*.js; do
     # Check for lines > 500 chars — need 3+ such lines to flag as minified.
     # A single long line (e.g., keyboard constant chain) in an otherwise
     # readable file is not minification.
-    long_line_count=$(awk 'length > 500 { n++ } END { print n+0 }' "$f" 2>/dev/null)
+    long_line_count=$(awk 'length > 500 { n++ } END { print n+0 }' "$f" 2>/dev/null || true)
     if [[ "$long_line_count" -ge 3 ]]; then
         minified_files+="  $rel_path ($long_line_count lines > 500 chars)"$'\n'
     fi
@@ -436,7 +436,7 @@ if [[ -d "$EXT_DIR/lib" ]]; then
             minified_files+="  $rel_path (webpack bundle)"$'\n'
             continue
         fi
-        long_line_count=$(awk 'length > 500 { n++ } END { print n+0 }' "$f" 2>/dev/null)
+        long_line_count=$(awk 'length > 500 { n++ } END { print n+0 }' "$f" 2>/dev/null || true)
         if [[ "$long_line_count" -ge 3 ]]; then
             minified_files+="  $rel_path ($long_line_count lines > 500 chars)"$'\n'
         fi

tests/fixtures/minified-boundary@test/LICENSE

@@ -0,0 +1 @@
+SPDX-License-Identifier: GPL-2.0-or-later

tests/fixtures/minified-boundary@test/extension.js

@@ -0,0 +1,7 @@
+{
+    "uuid": "minified-boundary@test",
+    "name": "Minified Boundary Test",
+    "description": "Tests that 2 long lines do not trigger minified-js detection",
+    "shell-version": ["48"],
+    "url": "https://example.com"
+}

tests/fixtures/minified-boundary@test/metadata.json

@@ -191,6 +191,12 @@ assert_exit_code "exits with 1 (has failures)" 1
 assert_output_contains "fails on minified JS" "\[FAIL\].*minified-js"
 echo ""
 
+# --- minified-boundary (2 long lines — below threshold) ---
+echo "=== minified-boundary ==="
+run_lint "minified-boundary@test"
+assert_output_not_contains "no minified-js with only 2 long lines" "\[FAIL\].*minified-js"
+echo ""
+
 # --- lifecycle-imbalance ---
 echo "=== lifecycle-imbalance ==="
 run_lint "lifecycle-imbalance@test"