chore(boundary): rate-limit canister install proposal (#3315)

Co-authored-by: IDX GitLab Automation <[email protected]>

rs/boundary_node/rate_limits/proposals/install_10-01-2025_134775.md

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+# Install the Rate-Limit Canister from Commit ab29295
+
+__Proposer__: DFINITY Foundation
+
+__Source code__: [ab29295b39258e753aafaaad72c740d938d61e35][new-commit]
+
+[new-commit]: https://github.com/dfinity/ic/tree/ab29295b39258e753aafaaad72c740d938d61e35
+
+## Summary
+
+Following the adoption of the motion proposal addressing [incident handling](https://dashboard.internetcomputer.org/proposal/134031) within the framework of the new decentralized boundary node architecture, we propose the deployment of the new rate-limit canister.
+
+This canister will enable API boundary nodes to enforce rate-limiting rules issued by an authorized DFINITY principal, hence protecting the ICP during incidents. Canister is designed as an append-only storage model, ensuring transparency and auditability of rate-limit rules after incidents disclosure. 
+
+The authorized principal responsible for pushing new rate-limit configurations and disclosing them is specified through the upgrade arguments in this proposal.
+
+## Verifying the installation
+
+First, make sure your Git repo has the right information.
+
+```
+# Option A. Get a fresh copy of the code.
+git clone [email protected]:dfinity/ic.git && cd ic
+# Option B. If you already have a copy of the ICP repo.
+git fetch
+```
+
+Second, checkout the right version of the code.
+
+```
+git checkout ab29295b39258e753aafaaad72c740d938d61e35
+```
+
+### Argument Verification
+
+The [didc][latest_didc] tool is required.
+
+[latest_didc]: https://github.com/dfinity/candid/releases/latest
+
+Fingerprint the canister argument:
+
+```
+didc encode \
+    -d rs/boundary_node/rate_limits/canister/interface.did \
+    -t '(InitArg)' \
+    '(record {
+        authorized_principal = opt principal "2igsz-4cjfz-unvfj-s4d3u-ftcdb-6ibug-em6tf-nzm2h-6igks-spdus-rqe";
+        registry_polling_period_secs = 60;
+    })' | xxd -r -p | sha256sum
+```
+
+This should match `arg_hash` field of this proposal.
+
+### WASM Verification
+
+See ["Building the code"][prereqs] for prerequisites.
+
+[prereqs]: https://github.com/dfinity/ic/tree/ab29295b39258e753aafaaad72c740d938d61e35/README.adoc#building-the-code
+
+Build the release version of canisters:
+
+```
+./ci/container/build-ic.sh -c
+```
+
+Fingerprint the canister module:
+
+```
+sha256sum ./artifacts/canisters/rate-limit-canister.wasm.gz
+```
+
+This should match `wasm_module_hash` field of this proposal.