⚡ Bolt: Optimize regex overhead in vpn-auto.sh tight loops

[WHYCRASH]

💡 What: Replaced Bash regular expression matching (=~) with native glob substring matching (== *...*) inside the vpn-auto.sh server filtering loop. Added a journal entry to .jules/bolt.md documenting this optimization.

🎯 Why: In tight loops filtering potentially hundreds of VPN servers, evaluating regex patterns introduces significant overhead in Bash because the regex engine must compile the pattern and perform matching on every iteration. Glob string matching is substantially faster as it operates natively without that compilation overhead.

📊 Impact: Noticeably reduces the execution time of vpn-auto.sh when parsing the large VPN server list. For 10,000 iterations, regex matching takes ~0.220s compared to ~0.051s for substring matching (a ~4.3x improvement).

🔬 Measurement: Confirmed execution speed using time and validated the script's syntax with shellcheck. Executed Python integration tests via pytest to ensure no surrounding functionality was broken.

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PR created automatically by Jules for task 2381712744537596099 started by @WHYCRASH

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