br: add status field for log status with json (#58465)

[ti-chi-bot]

This is an automated cherry-pick of #58465

What problem does this PR solve?

Issue Number: close #57959

Problem Summary:
log task status is not reported in the json format output

What changed and how does it work?

report log task status in the json format output

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

$ ./br log status --task-name pitr -u 127.0.0.1:2379
● Total 1 Tasks.
> #1 <
              name: pitr
            status: ● NORMAL
             start: 2024-12-23 14:30:34.62 +0800
               end: 2090-11-18 22:07:45.624 +0800
           storage: local:///root/backups/test9/log
       speed(est.): 0.00 ops/s
checkpoint[global]: 2024-12-23 14:30:34.62 +0800; gap=22s

$ ./br log status --task-name pitr -u 127.0.0.1:2379 --json
[{"name":"pitr","start_ts":454802914573025282,"end_ts":999999999999999999,"status":"NORMAL","table_filter":["*.*"],"progress":[],"storage":"local:///root/backups/test9/log","checkpoint":454802914573025282,"estimate_qps":0,"last_errors":[]}]

$ ./br log status --task-name pitr -u 127.0.0.1:2379
● Total 1 Tasks.
> #1 <
              name: pitr
            status: ● PAUSE
             start: 2024-12-23 14:30:34.62 +0800
               end: 2090-11-18 22:07:45.624 +0800
           storage: local:///root/backups/test9/log
       speed(est.): 0.00 ops/s
checkpoint[global]: 2024-12-23 14:33:02.07 +0800; gap=3m10s

$ ./br log status --task-name pitr -u 127.0.0.1:2379 --json
[{"name":"pitr","start_ts":454802914573025282,"end_ts":999999999999999999,"status":"PAUSE","table_filter":["*.*"],"progress":[],"storage":"local:///root/backups/test9/log","checkpoint":454802953226158082,"estimate_qps":0,"last_errors":[]}]

$ ./br log status --task-name pitr -u 127.0.0.1:2379
● Total 1 Tasks.
> #1 <
                    name: pitr
                  status: ○ ERROR
                   start: 2024-12-23 14:30:34.62 +0800
                     end: 2090-11-18 22:07:45.624 +0800
                 storage: local:///root/backups/test9/log
             speed(est.): 0.00 ops/s
      checkpoint[global]: 2024-12-23 14:33:02.07 +0800; gap=14m37s
          error[store=1]: KV:LogBackup:Io
error-happen-at[store=1]: 2024-12-23 14:46:22.055 +0800; gap=1m17s
  error-message[store=1]: I/O Error: No such file or directory (os error 2)
          error[store=2]: KV:LogBackup:Io
error-happen-at[store=2]: 2024-12-23 14:46:22.056 +0800; gap=1m17s
  error-message[store=2]: I/O Error: No such file or directory (os error 2)
          error[store=3]: KV:LogBackup:Io
error-happen-at[store=3]: 2024-12-23 14:46:22.057 +0800; gap=1m17s
  error-message[store=3]: I/O Error: No such file or directory (os error 2)

$ ./br log status --task-name pitr -u 127.0.0.1:2379 --json
[{"name":"pitr","start_ts":454802914573025282,"end_ts":999999999999999999,"status":"ERROR","table_filter":["*.*"],"progress":[],"storage":"local:///root/backups/test9/log","checkpoint":454802953226158082,"estimate_qps":0,"last_errors":[{"store_id":1,"last_error":{"happen_at":1734936382055,"error_code":"KV:LogBackup:Io","error_message":"I/O Error: No such file or directory (os error 2)","store_id":1}},{"store_id":2,"last_error":{"happen_at":1734936382056,"error_code":"KV:LogBackup:Io","error_message":"I/O Error: No such file or directory (os error 2)","store_id":2}},{"store_id":3,"last_error":{"happen_at":1734936382057,"error_code":"KV:LogBackup:Io","error_message":"I/O Error: No such file or directory (os error 2)","store_id":3}}]}]

• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

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Adding the do-not-merge/cherry-pick-not-approved label.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

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Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.5     #58569   +/-   ##
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  Coverage               ?   72.1457%           
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  Files                  ?       1417           
  Lines                  ?     413323           
  Branches               ?          0           
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  Hits                   ?     298195           
  Misses                 ?      95121           
  Partials               ?      20007           

Flag	Coverage Δ
unit	72.1457% <0.0000%> (?)

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Components	Coverage Δ
dumpling	52.9400% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	53.4816% <0.0000%> (?)