docs: attribution footer for machine-opened issues and PRs

Every agent-opened issue/PR body ends with cwd + omp session id so machine
filed artifacts trace back to the box and session that produced them - the
live-sync daemon and filing agents make 'who/what wrote this' a real
question now. Mirrored in dank/serverAppConfigs by its own PR.

Refs #11

AGENTS.md

@@ -36,6 +36,10 @@ with YAML frontmatter, spec at `omp-docs/references/okf-spec.md`).
   stay visible in history. **Never merge a PR without an explicit OK from Frank.**
 - **The moment a PR is open, open it in Frank's browser** — `xdg-open <PR-URL>`
   lands a tab in his Firefox; never make him hunt for it in Gitea.
+- **Attribution footer (issues and PRs)** — every issue or PR body you open ends
+  with a `---` line, then `cwd: <working directory> · session: <omp session id>`
+  (session id from `/status`). Machine-made artifacts stay attributable to the
+  box and session that spawned them.
 - Releases: tag `vX.Y.Z` straight on `main` after verifying; tags are the deploy
   markers every other machine pulls to. Hotfixes are ordinary branches off the
   tag you are fixing forward from.