feat: STATE.md — running log of what harb is and does (#680)

Seeded with current reality. Dev-agent appends one line per merge (before merge, on the PR branch — goes through review). Planner will collapse into compact snapshot periodically.

Ref: dark-factory#5
Co-authored-by: openhands <openhands@all-hands.dev>
Reviewed-on: https://codeberg.org/johba/harb/pulls/680

.codeberg/ISSUE_TEMPLATE/refactor.yaml

@@ -0,0 +1,44 @@
+name: Refactor / Tech Debt
+about: Code improvement without changing behavior
+labels:
+  - backlog
+body:
+  - type: textarea
+    id: what
+    attributes:
+      label: What needs cleaning up
+      description: Current state and why it's a problem.
+    validations:
+      required: true
+  - type: textarea
+    id: approach
+    attributes:
+      label: Approach
+      description: How to fix it. Specifics matter — the dev-agent will follow this literally.
+    validations:
+      required: true
+  - type: textarea
+    id: affected-files
+    attributes:
+      label: Affected files
+      description: Every file that will change. Include test files.
+    validations:
+      required: true
+  - type: textarea
+    id: acceptance
+    attributes:
+      label: Acceptance criteria
+      placeholder: |
+        - [ ] Refactored code works identically (no behavior change)
+        - [ ] Existing tests still pass
+        - [ ] CI green
+    validations:
+      required: true
+  - type: textarea
+    id: risks
+    attributes:
+      label: Risks
+      description: What could break? Which e2e tests cover this area?
+      placeholder: |
+        - e2e/staking.spec.ts — exercises the staking flow that touches these files
+        - Risk: CSS class rename could break selectors