## Summary
I mean I don't expect reviewers to go through every single change. It was painful enough to make all the changes myself, I had to write a script and regex the $*!+ out of the codebase to get this change through
## Test process
Tests pass. Searching through the codebase with regex queries to check for compliant strings.
## Checklist
- [ ] PR is linked to a **work item**
- [ ] **acceptance criteria** of linked ticket are met
- [ ] performed **self-review** of the code
- [ ] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [ ] updated the **change log**
- [ ] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code
Related work items: #3062
## Summary
Refactor of Node classes within PrimAITE to align with the `ConfigSchema` and `from_config` design implemented for PrimAITE v4.0.
Updates to tests to use the new `from_config` method when creating nodes.
Additional documentation page for how to implement custom Node classes
## Test process
WIP - Updating tests to still pass and prevent regression.
## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [X] written **tests** for any new functionality added with this PR
- [X] updated the **documentation** if this PR changes or adds functionality
- [X] written/updated **design docs** if this PR implements new functionality
- [X] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [X] attended to any **TO-DOs** left in the code
Related work items: #2887
## Summary
- Corrected some validation in observations and actions to use strings (in alignment with 'describe_state' methods.)
- Fixed bug where periodic agent would start on step 0 instead of on the configured start step
- Improved validations on network node adder
- Added database password to config schema of database service
- DNS client lookup no longer requires a DNS server address to be configured if the requested domain exists in the client cache
- DNS client can now inherit the parent node's DNS server address
## Test process
Unit tests and tests against the extension
## Checklist
- [X] PR is linked to a **work item**
- [X] **acceptance criteria** of linked ticket are met
- [X] performed **self-review** of the code
- [X] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [X] updated the **change log**
- [X] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code
#3029 - Add string-ip validator, improve validation, fix minor bugs in pulling schema data
Related work items: #3029
## Summary
*Replace this text with an explanation of what the changes are and how you implemented them. Can this impact any other parts of the codebase that we should keep in mind?*
## Test process
*How have you tested this (if applicable)?*
## Checklist
- [ ] PR is linked to a **work item**
- [ ] **acceptance criteria** of linked ticket are met
- [ ] performed **self-review** of the code
- [ ] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [ ] updated the **change log**
- [ ] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code
#2869 - fixes to agents and remove redundant prints
Related work items: #2869
