feat(FR-360): add max_pending_session_count, max_concurrent_sftp_sessions to keypair resource policy.

[agatha197]

resolves #3017
related PR: https://lablup.atlassian.net/browse/FR-317
refer: lablup/backend.ai#3413

Added support for two new resource policy fields in keypair resource policy:

• max_pending_session_count: Controls maximum number of sessions that can be in pending state
• max_concurrent_sftp_sessions: Controls maximum number of concurrent SFTP sessions

Checklist:

• Minimum required manager version: v24.03.4
• Test cases:
  • Create/modify keypair resource policy with new fields
  • Verify unlimited values work correctly (null for pending sessions, 0 for SFTP sessions)
  • Check fields are hidden when manager version < 24.03.4
  • Verify CSV export includes new fields
  • Test form validation and limits (0 to 2^31-1)

The PR also includes:

• Improved form layout and styling in resource policy modal
• Updated translations for new fields across all languages
• Refactored unlimited value handling in FormItemWithUnlimited component

Screenshots:

[agatha197]

• feat(FR-367): add keypair resource policy info modal #3030
• feat(FR-360): add max_pending_session_count, max_concurrent_sftp_sessions to keypair resource policy. #3025 👈 (View in Graphite)
• main

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Coverage report for ./react

St.❔	Category	Percentage	Covered / Total
🔴	Statements	4.66% (-0.03% 🔻)	398/8546
🔴	Branches	4.04% (-0.02% 🔻)	239/5922
🔴	Functions	2.83% (-0.01% 🔻)	78/2752
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Test suite run success

124 tests passing in 14 suites.

Report generated by 🧪jest coverage report action from f8d3a24

[ironAiken2]

On create/modify of keypair resource policy, the value of the resource part is not saved. It is always fixed to unlimited.

[ironAiken2]

please resolve conflicts :)

[agatha197]

all resolved. thank you for feedbacks.

[ironAiken2]

When creating a new keypair resource policy, the value of max_concurrent_sftp_sessions follows the value of Concurrent Jobs.

e.g. ) If you create a value of 3 for concurrent jobs, the value of sftp sessions is unconditionally created as 3.