feat: add get_incident_log_entries function for incident timeline data

[vicgp-te]

Description

Please include a summary of the change or which issue is fixed.
Adding get_incident_log_entries function for incident timeline data to allow getting incident log entries.

• Retrieve complete incident timeline including acknowledgments and status changes
• Add LogEntry, LogEntryAgent, and LogEntryChannel models
• Include comprehensive unit tests with 100% coverage
• Update documentation and tool registration

Issue number: #45

Type of change

• New feature (non-breaking change which adds functionality)
• Fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation only

Checklist

• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• Changes generate no new warnings
• PR title follows conventional commit semantics

If this is a breaking change 👇

• I have documented the migration process
• I have implemented necessary warnings (if it can live side by side)

Disclaimer: We value your time and bandwidth. As such, any pull requests created on non-triaged issues might not be successful.

[vicgp-te]

@imjaroiswebdev Any chance you can review this? we would like to have this feature included to start using this tool. Thanks

[vicgp-te]

@t1agob @jcorte-real Any change his can be reviewed? we would like to have this feature included to start using this tool. Thanks

[carlyou]

@vicgp-te my PR is kinda in the same boat here.
just in case, feel free to check out https://github.com/carlyou/pagerduty-mcp-community and add desired tools as needed.

[vicgp-te]

@carlyou this PR? #26
I see you are adding list_alerts and get_alert which is different to what I am adding here. Or, are you talking about a different PR?

[vicgp-te]

@blagh Any chance this PR can be reviewed by someone? It has been waiting for more than a month, or is this project maybe abandoned?

[carlyou]

@carlyou this PR? #26 I see you are adding list_alerts and get_alert which is different to what I am adding here. Or, are you talking about a different PR?

@vicgp-te I was referring to the forked repo -- feel free to send a PR there in the meanwhile.