docs: replace Mintscan explorer links with Seistream

[alexander-sei]

Summary

Replaces all Mintscan (mintscan.io/sei) links across the docs with Seistream (seistream.app) equivalents. Every replacement target was checked live. Rebased onto latest main (includes #47 — Prop 120 + Wormhole route changes).

Changes

• Governance proposals — mintscan.io/sei/proposals/{id} → seistream.app/proposals/{id} for proposals 99, 109, 115, 116, and 120 across STYLE_GUIDE.md, snippets/sstore-gas-live.jsx, cosmos-sdk/index.mdx, evm/differences-with-ethereum.mdx, evm/precompiles/cosmwasm-precompiles/{cosmwasm,example-usage}.mdx, and learn/{dev-interoperability,dev-token-standards,pointers,sip-03-migration}.mdx.
• Explorers nav (docs.json) — "Mintscan" → "Seistream" (https://seistream.app).
• learn/explorers.mdx — removed the Mintscan entry (Seistream was already listed, so a swap would have duplicated it).
• SIP-03 migration asset table (learn/sip-03-migration.mdx) — each asset now links to its Seistream EVM pointer page (seistream.app/address/{0x}). Seistream has no working page for raw IBC/factory denoms (they render "page doesn't exist"), so the EVM pointer page is the correct equivalent.

Verification

Target	Result
Proposals 99 / 109 / 115 / 116 / 120	✅ Resolve, titles match
seistream.app (nav)	✅ Live
USDC.n, USDT.kava, USDCso, USDCet, ATOM, WBTC pointer pages	✅ Full ERC-20 token page
USDCop, USDTbs pointer pages	⚠️ Valid contract page, token-info panel not indexed

Notes / exceptions

• WETH (Wormhole-bridged) kept on Mintscan — no ERC20 pointer exists on Seistream, so there is no equivalent page.
• USDCop / USDTbs point to their EVM pointer contracts, which currently render as verified contracts without a token-info panel (Seistream hasn't indexed their metadata).
• llms-full.txt left untouched: it is generated by scripts/generate-llms.mjs from the published site and will update on the next regeneration after this deploys.

🤖 Generated with Claude Code

[cursor]

PR Summary

Low Risk
Documentation and hyperlink updates only; no runtime code paths or security-sensitive logic changed.

Overview
Repoints external explorer links from Mintscan to Seistream across the docs site—no product or chain behavior changes.

Governance proposal references (mintscan.io/sei/proposals/*) now use seistream.app/proposals/* in the style guide, Cosmos deprecation callouts, EVM/CosmWasm learn pages, the live SSTORE gas snippet, and SIP-03 migration copy.

Site navigation: the footer Explorers entry is renamed from Mintscan to Seistream (https://seistream.app). On learn/explorers, the duplicate Mintscan mainnet bullet is removed because Seistream was already listed.

SIP-03 IBC asset table: most asset rows now link to Seistream EVM address pages instead of Mintscan IBC/factory asset URLs; USDC.n and USDT.kava keep Seiscan plus Seistream. Wormhole-bridged WETH still points at Mintscan where Seistream has no equivalent page.

^{Reviewed by Cursor Bugbot for commit 2caec64. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[github-actions]

Docs-only PR replacing Mintscan explorer links with Seistream equivalents across ~11 files. No blockers; changes are consistent and table formatting is preserved. A few non-blocking notes concern the semantic shift in the SIP-03 migration table and address verification.

Findings: 0 blocking | 6 non-blocking | 1 posted inline

Blockers

• None at the file/PR level.

Non-blocking

• Both second-opinion passes produced no output: codex-review.md and cursor-review.md are empty, and REVIEW_GUIDELINES.md is also empty (no repo-specific standards applied). This review is unaided by those tools.
• Address correctness can't be verified statically. The SIP-03 migration table now links Wormhole/IBC assets to hardcoded EVM pointer addresses (USDCet 0xa272..., USDCop 0xC489..., USDTbs 0x0bf5..., ATOM 0xaF5f..., WBTC 0xe369..., USDCso 0x8eED...). The PR notes USDCop/USDTbs pointer pages aren't fully indexed on Seistream — please double-check each address resolves to the correct asset's pointer contract before merge, since a wrong address here could misdirect users during an irreversible asset migration.
• Semantic shift for Wormhole rows: the old Mintscan links pointed to the native factory/IBC denom the user actually holds, while the new Seistream links point to the asset's EVM pointer contract. This is a reasonable editorial call (documented in the PR, since Seistream lacks denom pages), but a user searching for the token as they hold it on the Cosmos side may find the pointer-contract page less recognizable.
• The WETH row (learn/sip-03-migration.mdx:53) intentionally remains on Mintscan (no Seistream pointer exists), so the "replace all Mintscan links" goal is intentionally partial — consider a brief inline note or follow-up so a future reader doesn't assume it was missed.
• llms-full.txt still contains all the old Mintscan links; per the PR this is generated by scripts/generate-llms.mjs and will refresh on next regeneration. Fine to leave, just confirming it's expected.
• 1 suggestion(s)/nit(s) flagged inline on specific lines.

[github-actions]

[suggestion] For the Wormhole-bridged assets (USDCso here and the rows below), the link target changed from the native factory denom to the EVM pointer contract address. Please verify each of these hardcoded addresses resolves to the correct pointer contract — the PR notes USDCop/USDTbs pages aren't fully indexed on Seistream. Since this table guides an irreversible asset migration, an incorrect address would be high-impact.