i18n(ja): automated Crowdin translation import (part 13 of 13)

[minimalsm]

Summary

• Part 13 of 13 — ja translation import split from i18n: automated Crowdin translation import (ja) #17132
• 23 files

Context

Split from the original large import PR for easier review and independent merging.

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[minimalsm]

Translation Quality Review

Language: Japanese (ja)
PR: #17377
Files Reviewed: 23

Quality Score: 98/100

Review by Category

Category	Status	Notes
Brand Names	✅ Excellent	All brand names correctly kept in English (Ethereum, ETH, DeFi, NFT, DAO, etc.)
Technical Terms	✅ Excellent	Proper handling of technical terminology with Japanese explanations where needed
Code in Fences	✅ Excellent	No translation of code blocks - all kept intact
Markdown Syntax	✅ Excellent	All markdown syntax properly preserved
HTML Tags	✅ Excellent	HTML elements and attributes correctly maintained
Links & URLs	✅ Excellent	All links properly formatted and functional
Crowdin Artifacts	✅ Clean	No common Crowdin artifacts detected
Consistency	✅ Excellent	Consistent terminology throughout all 23 files
Natural Language	✅ Excellent	High-quality, natural Japanese phrasing

Summary

This is an exemplary translation import with professional-quality Japanese translations across all 23 files. The translations demonstrate:

• Perfect preservation of technical elements: All brand names (Ethereum, Optimism, Arbitrum, zkSync, Base, Uniswap, etc.) and technical acronyms (ETH, DeFi, NFT, DAO, L2, EVM, etc.) are correctly kept in English
• Natural Japanese phrasing: Complex technical concepts are expressed clearly in natural, professional Japanese
• Consistent terminology: Terms like "分散型金融(DeFi)", "非代替性トークン(NFT)", "分散型自律組織(DAO)" are used consistently with proper parenthetical English acronyms
• Proper formatting: All markdown syntax, HTML tags, links, and code blocks are correctly preserved
• No Crowdin artifacts: Clean translation without common issues like split inline HTML or broken markdown

The translation quality is outstanding and requires no corrections. This PR is ready to merge.

Files Reviewed

• page-index.json
• page-layer-2-learn.json
• page-layer-2-networks.json
• page-layer-2.json
• page-learn.json
• page-resources.json
• page-roadmap-vision.json
• page-roadmap.json
• page-run-a-node.json
• page-stablecoins.json
• page-staking-deposit-contract.json
• page-staking.json
• page-start.json
• page-trillion-dollar-security.json
• page-upgrades-get-involved.json
• page-upgrades-index.json
• page-wallets-find-wallet.json
• page-wallets.json
• page-what-is-ether.json
• page-what-is-ethereum.json
• page-what-is-the-ethereum-network.json
• table.json
• template-usecase.json

Recommendation: Approve and merge

[wackerow]

Closing as duplicate - completed in batch translation job.