feat: add search filters for deprecated packages and newly published …

[fengmk2]

…packages

Implemented two new search filter configurations:

1. searchExcludeDeprecated - Filter deprecated packages from search results

   • Default: true (deprecated packages are excluded by default)
   • Can be disabled by setting to false
   • Controlled by env: CNPMCORE_CONFIG_SEARCH_EXCLUDE_DEPRECATED

2. searchPackageMinAge - Filter newly published packages

   • Default: empty string (no filter applied)
   • Supports time format: '2w' (weeks), '14d' (days), '336h' (hours)
   • Controlled by env: CNPMCORE_CONFIG_SEARCH_PACKAGE_MIN_AGE

Changes:

• Added deprecated field to SearchMappingType and sync it to Elasticsearch
• Added _buildFilterQueries() method to build Elasticsearch filter conditions
• Added _parseTimeString() helper to parse time strings (h/d/w format)
• Added comprehensive unit tests for the new filter functionality

Closes #858

🤖 Generated with Claude Code

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✨ Finishing touches

🧪 Generate unit tests (beta)

• [ ] Create PR with unit tests
• [ ] Post copyable unit tests in a comment
• [ ] Commit unit tests in branch claude/implement-issue-858-011CURYUu9i46HHcFVRQ5fFV

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