Move github agents to reusable repo

[Unshure]

TODO: Look into why this failed: https://github.com/Unshure/sdk-typescript/actions/runs/21082725725/job/60640108333

Copying the Github agents from sdk-typescript into the devtools repo to be reused across the github org.

Files unchanged in this copy:

• All python script files are unchanged
• All SOP's content are unchanged

Changes made:

• Simplified the Strands command flow into 3 actions:
  • parse-input: This sets the strands running label, parses the input, and then uploads the parsed input as an artifact. Im uploading this as an artifact so that the workflow that orchestrates these actions can have less logic (no need to plumb outputs from parse-input into agent exec, this is handled behind the scenes through artifacts. Also added some more logging.
  • agent-runner: This runs the agent as normal. I needed to remove repo-specific setup (like setting up node and running npm install) since this is meant to be generic. Any repo-specific setup needs to happen before triggering this action
  • finalize: This combines the execute write and remove label steps. This is just to make the workflow simpler
• Because we no longer plumb outputs from parse-input into the other steps, I instead added logic to theprocess-input.cjs file that uploads the processed input as an artifact, and updated the other actions to download this artifact to get the parsed input.

Here is a test of me using this new format for running the actions: Unshure/sdk-typescript#2