data: add SPL token standard to remaining Solana-supporting wallet offers

[foxxx009]

Summary

Backfills the missing SPL token standard in the canonical tokensSupport cell for the three Solana-supporting wallet offers not covered by #3669:

• coolwallet
• dcent
• gate

3 cells in references/offers/wallets.csv. No other columns, rows, or files touched.

Evidence (primary provider docs)

Wallet	Source	Quote
coolwallet	help.coolwallet.io — Coins/Tokens Supported By CoolWallet Pro	Mainnet list includes "Solana (SOL)"; "Supported Tokens: All ERC-20 / ERC-20(Arbitrum, Polygon) / BEP-20 / TRC-20 / SPL / FLR / TT customized tokens, and All ERC-721, ERC-1155 NFT tokens!"
dcent	store.dcentwallet.com blog + product page	"D'CENT Wallet is integrated with Solana SPL Tokens" ("Support for Solana chain and native currency (SOL asset); Support for Solana chain based token assets (SPL token assets)"); product page: "Supports all types of token standards, ERC-20, ERC-721, ERC-1155, SPL, Trustlines, and more"
gate	gate.com Learn — Gate Wallet analysis	"supports over 100 mainstream public chains, including Ethereum, BSC, Polygon, Solana, and Arbitrum, covering the mainstream ERC-20, BEP-20, and SPL token types"

Same root cause as the Phantom correction in #3660 and the #3669 backfill: these canonical rows are referenced by listings/specific-networks/solana/wallets.csv via !offer:<slug>, so the missing SPL standard propagates as inherited data to every network listing referencing these wallets.

Validation

• validate_csv.py: All checks passed.
• csv_to_json.py + validate.py (json-tools @ origin/json-tools, schema 2.0.0): exit 0.
• Surgical edits verified programmatically: 3 changed cells, 0 off-target cells.
• Only pre-existing baseline warnings remain.

Rewards address: 0x2409b47a530be3831158f10b08ac93f7d08c1ff2

[github-actions]

Summary

Status	Count
🔍 Total	4
🔗 Unique	4
✅ Successful	4
⏳ Timeouts	0
🔀 Redirected	1
👻 Excluded	0
❓ Unknown	0
🚫 Errors	0
⛔ Unsupported	0

Full Github Actions output

[USS-Supervisor]

Verdict: APPROVE
Risk: LOW
Summary: Required validation is passing on the current head and the reviewer-owned current-cycle link-check run 34060772131 completed successfully. I checked the changed CSV surface and confirmed references/offers/wallets.csv still parses as 106 rows with 22 columns, with unchanged header, row count, and slug set; only the tokensSupport cells for coolwallet, dcent, and gate changed, and all three now include SPL without duplicate slugs or row-width shifts.
Findings: None.
Confidence: HIGH

The source check also supports the change: the touched canonical offers are referenced from listings/specific-networks/solana/wallets.csv, and the linked provider/Gate documentation supports SPL/Solana coverage for the three wallets. The current-cycle link-check summary reported 4 total/unique links, 4 successful, 0 errors, 0 timeouts, and 0 unsupported URLs.