chore: merge main into develop

[kingpinXD]

Description

Steps followed for the Merge

• Created this branch from the current develop and merged all changes from main into this branch.
• Prioritized develop for all zetaclient changes, and main for zetacore changes. E2E and other directories were selected as needed
• Main was 71 commits ahead of develop, which is the first 71 commits on this PR
• There were some more changes related to zetaclient and e2e tests, which were present in main but not on develop and had to applied manually
  8cda400 (mostly fixed related to unit tests )
  8d81a07 (most changes from main for zetaclient )
  6bd0328 (fixes for e2e upgrade tests)
  d4aecf4 (minor fixes )
  bca8e6f (minor fixes )
  04b549c ( zetacore fix for removing pending nonces)

The following comit has been ignored for now
d41507c

Develop was priotized for the following changes,as both main and develop had conflicts
#4218
#4274

Important zetacored changes
#3734 ( refund a portion of unused gas to the user )

• A portion of the remaning funds is sent to the user , and the rest to stability pool .

#4479 : Remove an observer and test TSS migration with a reduced observer set

• The MsgRemoveObserver is used to remove an observer from the set . It removes the observer from the observer set and node account list
• There are two tests in the makefile start-tss-migration-add-observer: and start-tss-migration-remove-observer which test both the flows .
• another key thing to review is the TSS funds migration , this is. triggered between a tss generation and tss update to migrate funds . This should be done for all EVM and BITCOIN chains , however it has not been possible for us to test this against all evm chains on localnet , we just have ETH

#4486 (Add v2 ZETA deposits and withdraws , and add a flag to toggle it on and off)

• This enables zeta deposits and withdraws using connector v2 , but is disabled by the flag .
• The new connectors would not be enabled initially , so v37 should still fully support legacy flows

---

Note

Aligns develop with main, updating APIs, docs, e2e tooling/tests, and build/CI scripts.

• API/Docs: rename whitelist-erc20 to whitelist-asset; remove several deprecated query endpoints/types; add fields like Inbound.error_message, InboundStatus.EXCESSIVE_NOASSETCALL_FUNDS, Outbound.userGasFeePaid, ChainParams.stabilityPoolPercentage; refresh CLI docs; add gas fee and unused-fee management docs
• E2E runner/tests: refactor deposit/transfer helpers (e.g., TransferZETAOnEvm, Deposit*ToDeployer), enable ZETA token workflow tests, add Bitcoin→ZEVM call tests, improve keygen wait/status, allow multiple TSS generations in migration, switch to SetupZEVM/SetupZRC20, update chain params flow
• Configs/Contracts: add CoreRegistry to e2e configs; wire in coreregistry client; remove contextapp contract and related wiring; update TestDAppV2 ABI/bin (constructor includes zetatoken, payable onRevert, new getters)
• Core/Handlers: remove env-driven upgrade tracker creation (no upgrades listed); fix typo in ante error message
• Tooling/Scripts: expand EVM RPC resolution (arbitrum/optimism/avalanche/worldchain); simplify zetatool inbound (drop legacy confirmation params); ensure priv_validator_state.json in devnet; add test filter and extra logs in upgrade script; force snapshot download in Makefile; new e2e make targets/env flags
• CI: rename workflow matrix target to start-upgrade-test-zetaclient-light; minor semgrep comment cleanup
• Changelog: add Release ReForge notes and reorganize historical sections

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