archive old experiments and publish swe series

experiments/README.md

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+# Experiments
+
+The retained study consists of the [baseline](baseline-swebench/), [isolated offline control](swe-isolated-offline/), [shared scratchpad](swe-shared-scratch/), [shared board](swe-shared-board/), [board and feedback](swe-board-feedback/), [board and internet](swe-board-internet/), and [board and token awareness](swe-board-token-budget/) experiments.
+
+See the [series protocol](../docs/swe-scenario-series.md) for common assignments, model routes, interventions, status, and comparisons.
+
+Historical experiment definitions and logs are retained locally under ignored `archive/`.