contracts/feat: core configuration

[wankhede04]

Note

Low Risk
Mostly CI/tooling and formatting-only Solidity changes; functional risk is low, with the main risk being CI workflow/coverage/artifact generation flakiness (e.g., ABI extraction via jq, Slither install).

Overview
Modernizes repo tooling and CI around Foundry. The contracts-build-test workflow now runs on push/manual dispatch, uses Foundry stable, installs Python+Slither, runs make clean/lint/build/test-ci, and uploads coverage plus generated ABI artifacts.

Adds project-wide developer/runbook config. Introduces a comprehensive Makefile, expands foundry.toml into multi-profile config (ci, coverage, prod, gas) with lint/fmt/doc settings, adds Slither/Mythril configs and requirements.txt, and adds AGENTS.md + README updates.

Improves test coverage via fuzzing. Adds new fuzz test suites for EigenAdapter, OraclePriceFeed, and RewardsManager with a shared FuzzBase harness.

Code changes are non-functional formatting/consistency. Solidity contract/interface updates are primarily signature formatting/override spacing and numeric literal readability (e.g., 10_000), plus minor script comment/constant formatting; no core logic changes.

^{Reviewed by Cursor Bugbot for commit 8b73524. Bugbot is set up for automated code reviews on this repo. Configure here.}

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 48e33d0. Configure here.}