i18n(ja): fix translation defects in the v1.0 to v2.0.5 release notes

[yahonda]

What is changed, added or deleted? (Required)

Fixes translation defects in the Japanese release notes for v1.0 to v2.0.5 (20 files; 1.0.1, 1.0.7, and 2.0-rc.1 had none). This is the first half of round 9, the last round of the releases/ review. I checked each item against its EN bullet (release-8.5) and against resources/terms-en-ja.md.

Fixes

• 2.0.4: the plural "PendingPeers" became 「PendingPeer秒」 ("seconds").
• 2.0-ga:
  • L144: two EN bullets had been merged into one line; they are split again.
  • L97: the Raw Batch API list is restored with "Add".
• 2.0-rc.3: a top-level item was indented as a sub-item.
• Swapped or scrambled identifiers:
  • 2.0-rc.5: L38 (tikv-ctl/block-cache-size) and L43.
  • 2.0-rc.3: L12 and L13.
  • 2.0.3, 2.0.5, and 1.1-alpha.
• Meaning fixes:
  • "stores with a specific label not to schedule Raft leaders" (subject and object) in 1.1-beta and 2.0-ga.
  • "prompted" → 返される.
  • "quote the column" → 参照.
  • "SELECT FOR UPDATE prevents others from reading".
• Wrong-domain words:
  • 了承 → 謝辞 (Acknowledgement).
  • 学習器 → Learner.
  • 結合されたインデックス → 複合インデックス.
  • 通話回数 → 呼び出し回数.
  • 終了信号 → 終了シグナル.
  • 費用 → コスト.
  • リージョン番号 → リージョン数.
  • Raftショット → Raftスナップショット.
  • 小数点 (Decimal) → Decimal 型.
  • 領域 → リージョン.
• These stay in English: Learner, TiKV Importer, ReadPool, Raw DeleteRange, Delete Range, and offset + limit.
• Restores particles dropped after backticks; removes stray 目/分 artifacts and a tilde used as a particle.

Not changed:

• Existing 「パニック」 and the established lowercase 「ラーナー」.
• 圧縮 for compaction, which is a separate sweep.
• The order and spacing of issue links.

Which TiDB version(s) do your changes apply to? (Required)

Tips for choosing the affected version(s):

By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.

For details, see tips for choosing the affected versions.

• i18n-ja-release-8.5 (TiDB Japanese documentation for TiDB 8.5 versions)

What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s): i18n(ja): fix translation defects in the v8.5.x release notes #24143, i18n(ja): fix translation defects in the v8.1.0, v8.1.2, and v8.2.0 release notes #24148, i18n(ja): fix translation defects in the v8.0.0, v8.3.0, and v8.4.0 release notes #24152, i18n(ja): fix translation defects in the v7.0.0 to v7.4.0 release notes #24153, i18n(ja): fix translation defects in the v7.5.x and v7.6.0 release notes #24154, i18n(ja): fix translation defects in the v6.0.0 to v6.4.0 release notes #24157, i18n(ja): fix translation defects in the v6.5.x and v6.6.0 release notes #24158, i18n(ja): fix translation defects in the v5.0.x to v5.2.x release notes #24164, i18n(ja): fix translation defects in the v5.3.x and v5.4.x release notes and the release index #24165, i18n(ja): fix translation defects in the v4.0.0-beta to v4.0.9 release notes #24171, i18n(ja): fix translation defects in the v4.0.10 to v4.0.16 release notes #24172, i18n(ja): fix translation defects in the v3.0-beta to v3.0.14 release notes #24178, i18n(ja): fix translation defects in the v3.0.15 to v3.1.2 release notes #24179

AI agent involvement

• The changes in this PR were primarily made by an AI agent on behalf of the PR author.

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

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📥 Commits

Reviewing files that changed from the base of the PR and between a4dfec7 and 9890a49.

📒 Files selected for processing (20)

• releases/release-1.0-ga.md
• releases/release-1.0.2.md
• releases/release-1.0.3.md
• releases/release-1.0.4.md
• releases/release-1.0.5.md
• releases/release-1.0.6.md
• releases/release-1.0.8.md
• releases/release-1.1-alpha.md
• releases/release-1.1-beta.md
• releases/release-2.0-ga.md
• releases/release-2.0-rc.3.md
• releases/release-2.0-rc.4.md
• releases/release-2.0-rc.5.md
• releases/release-2.0.1.md
• releases/release-2.0.10.md
• releases/release-2.0.11.md
• releases/release-2.0.2.md
• releases/release-2.0.3.md
• releases/release-2.0.4.md
• releases/release-2.0.5.md

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