Scenarios for all load generators

[simonlechner]

This PR adds scenarios for all load generators.

[Copilot]

Pull request overview

This PR adds a set of runnable YAML scenarios under scenarios/load_generators/ to exercise each supported load-generator application type against a small network (typically a single validator), providing a standardized way to validate transaction generation/processing per app.

Changes:

• Added one dedicated scenario per load generator (counter, erc20, store, uniswap, transient, smartaccount, bundles variants, etc.).
• Included InitialNetworkRules upgrade flags for scenarios that require specific network features (e.g., bundles/subsidies).

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
scenarios/load_generators/all_of_bundle.yml	Scenario to run the allofbundle load generator with required bundle-related upgrades enabled.
scenarios/load_generators/bls12_add.yml	Scenario to run the bls12add precompile load generator with Allegro enabled.
scenarios/load_generators/counter.yml	Scenario to run the counter load generator on a single validator.
scenarios/load_generators/duplicated_bundle.yml	Scenario to run the duplicatedbundle load generator with bundle-related upgrades enabled.
scenarios/load_generators/ecdsa.yml	Scenario to run the ecdsa load generator on a single validator.
scenarios/load_generators/erc20.yml	Scenario to run the erc20 load generator on a single validator.
scenarios/load_generators/failing_bundle.yml	Scenario to run the failingbundle load generator with bundle-related upgrades enabled.
scenarios/load_generators/large_contract.yml	Scenario to run the largecontract load generator on a single validator.
scenarios/load_generators/mix.yml	Scenario to run the mix load generator across app types with weighted selection and required upgrades enabled.
scenarios/load_generators/one_of_bundle.yml	Scenario to run the oneofbundle load generator with bundle-related upgrades enabled.
scenarios/load_generators/selfdestruct_new_contract.yml	Scenario to run the selfdestructnewcontract load generator on a single validator.
scenarios/load_generators/selfdestruct_old_contract.yml	Scenario to run the selfdestructoldcontract load generator on a single validator.
scenarios/load_generators/smart_account.yml	Scenario to run the smartaccount load generator with Allegro enabled.
scenarios/load_generators/store.yml	Scenario to run the store load generator on a single validator.
scenarios/load_generators/subsidies.yml	Scenario to run the subsidies load generator with GasSubsidies enabled.
scenarios/load_generators/subsidized_bundle.yml	Scenario to run the subsidizedbundle load generator with bundle+subsidy upgrades enabled.
scenarios/load_generators/transient.yml	Scenario to run the transient load generator on a single validator.
scenarios/load_generators/uniswap.yml	Scenario to run the uniswap load generator on a single validator.