chore: bump version to 1.7.3

[jackwener]

Summary

Bump version to 1.7.3.

v1.7.3 Highlights (17 PRs)

Security & Quality

• fix: address code audit findings (C1-C4, I1, I4, I6) #981 — Code audit round 1: evaluate injection, CDP leak, manifest corruption guard
• fix: code audit round 2 — safety, hot-reload, error diagnostics #982 — Code audit round 2: pruneEmptyDirs safety, evaluateWithArgs, hot-reload, error cause chain
• fix: clean up stale .yaml adapter files from older versions (#953) #986 — Clean up stale .yaml adapter files ([Bug]: 每次运行opencli都会报警告，升级到1.7.0版本就会这样，1.6.9不会这样子 #953)

Breaking Changes

• Rename chatgpt adapters: desktop → chatgpt-app, web → chatgpt #989 — ChatGPT adapter rename: chatgptweb → chatgpt, chatgpt → chatgpt-app
• refactor: unify OPENCLI_VERBOSE and DEBUG=opencli #991 — Unify OPENCLI_VERBOSE into DEBUG=opencli

New Features

• feat(mubu): add Mubu adapter with 5 commands #964 — Mubu adapter (5 commands)
• feat(clis/chatgptweb): add ChatGPT web image generation command #973 — ChatGPT Web image generation
• feat(bilibili): add feed-detail and enhance feed command #974 — Bilibili feed-detail
• feat(ke): add Beike (贝壳找房) adapter #975 — Ke (贝壳找房) adapter (4 commands)
• feat(maimai): add talent search with multi-dimensional filters #977 — Maimai talent search
• feat(discord-app): add delete command to remove a message by ID #976 — Discord-app delete command

Fixes

• fix(douban): classify tv search results correctly #979 — Douban search type classification
• fix(xiaohongshu): harden anti-detection flows #980 — Xiaohongshu anti-detection hardening
• Fix automation window not closing on command failure #992 — Fix automation window not closing on failure

Refactor

• feat: decouple extension version from CLI version #985 — Decouple extension version from CLI
• Remove unused OPENCLI_SKIP_FETCH env var #987 — Remove unused OPENCLI_SKIP_FETCH

Docs

• docs: document undocumented environment variables #983 — Document undocumented env vars