Improve log parsing, URL handling, and detailed reporting for router troubleshooting skills

[mouxinqq]

Motivation

• Make log parsing and time-range handling more robust and flexible for real-world router logs (variable years, time-only args, tail-by-minutes).
• Normalize worker/worker-URL presentation and matching (strip scheme, accept http/https and host:port forms) to improve readability and correctness across analyzers.
• Enrich reports with per-window details and better select/release matching to aid diagnostics.

Description

• Replace hardcoded year/date fallbacks with datetime.now().year and include full date in compute_time_span to avoid using stale defaults.
• Add URL_RE patterns and broaden regexes everywhere to accept optional http(s):// and host:port forms, and add _strip_scheme helpers to consistently render worker URLs without scheme.
• Improve select/release matching logic with request_id/alt-id keys, ID coverage metrics, time-fallback matching window, and untracked_selects tracking; expose match method and id coverage in results.
• Add filter_file_by_recent_minutes and extend CLI --tail handling to support Nm minutes mode by time-window filtering; update troubleshoot.py to use minutes-mode filtering and to parse --tail into structured arg.
• Enhance stat_cache_hitrate reporting: introduce build_per_window_rows, include per-5s window preview in terminal report, export per-window details to details/per_window_data.md, and pass diagnosis & time_span into detailed report output.
• Add/extend various analyzer improvements: include DEBUG level in log_parser, add token counter and select/release integration into load analyzer, refine health analyzer IP/url parsing and recovery detection, and extend error source rules.
• Misc: unify and tighten regexes for token/select/release/prefill events, include ts_ms reason parsing variants, and minor UI/text improvements in ASCII/Unicode charts and messages.

Testing

• Ran automated syntax/import checks with python -m compileall across modified modules and no syntax errors were reported.
• Executed CLI smoke invocations python troubleshoot.py --help and python stat_cache_hitrate.py --help to validate argument parsing and startup paths, both succeeded.
• Performed automated analyzer smoke runs on sample log snippets exercising select/release matching, --tail minute filtering, and report generation; these smoke checks completed without exceptions.

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Codex Task