add --messsage/-m and store in info.json

[asmacdo]

Fixes #223

duct -m "hey yarik we can do messages now" sleep 1
2025-08-07T14:33:14-0500 [INFO    ] con-duct: duct is executing 'sleep 1'...
2025-08-07T14:33:14-0500 [INFO    ] con-duct: Log files will be written to .duct/logs/2025.08.07T14.33.14-438515_
2025-08-07T14:33:15-0500 [INFO    ] con-duct: Summary:
Exit Code: 0
Command: sleep 1
Log files location: .duct/logs/2025.08.07T14.33.14-438515_
Wall Clock Time: 1.002 sec
Memory Peak Usage (RSS): 2.4 MB
Memory Average Usage (RSS): 2.4 MB
Virtual Memory Peak Usage (VSZ): 235.9 MB
Virtual Memory Average Usage (VSZ): 235.9 MB
Memory Peak Percentage: 0.00%
Memory Average Percentage: 0.00%
CPU Peak Usage: 0.00%
Average CPU Usage: 0.00%

con-duct ls -e "re.search('yarik', message)" -F message
Prefix: .duct/logs/2025.08.07T14.33.14-438515_
	Message: hey yarik we can do messages now

[mergify]

🧪 CI Insights

Here's what we observed from your CI run for 66c8903.

✅ Passed Jobs With Interesting Signals

Pipeline	Job	Signal	Health on base branch	Retries	🔍 CI Insights	📄 Logs
Test	test (ubuntu-latest, pypy-3.10, py)	Base branch is broken, but the job passed. Looks like this might be a real fix 💪		0	View	View

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.53%. Comparing base (4451eaa) to head (66c8903).
⚠️ Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #285      +/-   ##
==========================================
+ Coverage   92.49%   92.53%   +0.04%     
==========================================
  Files           7        7              
  Lines         866      871       +5     
  Branches      118      119       +1     
==========================================
+ Hits          801      806       +5     
  Misses         44       44              
  Partials       21       21              

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[yarikoptic]

just verify that it would work with prior versions of the schema

[github-actions]

🚀 PR was released in v0.15.0 🚀