chore[notask]: release @qvac/rag v0.7.0

[opaninakuffo]

🎯 What problem does this PR solve?

• Publish @qvac/rag 0.7.0 from release-rag-0.7.0.
• main already has the TypeScript ESM conversion (#3718) and the query-validation fix (#3729). Neither is on npm yet; latest published is 0.6.4.
• ESM is a breaking change: require('@qvac/rag') no longer works.

📝 How does it solve it?

• Bump packages/rag/package.json 0.6.4 → 0.7.0.
• Generate changelog/0.7.0/ (raw + breaking + api + human-readable notes).
• Restore changelog/0.6.4/ so the aggregate changelog does not drop the already-published 0.6.4 notes (that release never had a version folder).
• Add @qvac/logging@0.1.1 to NOTICE (new production dependency from the TS conversion). Full qv-notice-generate could not run here (.env tokens not exported into the process).

🧪 How was it tested?

• Changelog generator: base rag-v0.6.0, 7 included PRs, skiplog/backmerge PRs excluded.
• scripts/sdk/validator.cjs accepts the commit and PR title.
• Human-readable notes checked against #3718 and #3729 source: ESM "type": "module" / import-only exports; search/infer throw QvacErrorRAG { INVALID_INPUT } before query.substring.

💥 Breaking Changes

Shipped by #3718, documented here for the npm release.

BEFORE:

const { RAG, HyperDBAdapter } = require('@qvac/rag')

AFTER:

import { RAG, HyperDBAdapter } from '@qvac/rag'

[github-actions]

Review Status

Current Status: ❌ PENDING
Approvals so far: none

Pending reviews: Needs 1 Management or Team Lead, and 1 more from Management, Team Lead, or Member.

[github-actions]

License compliance — clean

No new dependency license findings in this PR.

Warn-only (shadow) mode — this check does not block merges yet.

Updated automatically by the canonical license compliance workflow.

NOTICE presence (advisory)

Missing NOTICE (advisory, does not block):

• ./.github/actions/release-merge-guard
• ./docs/website
• ./packages/ggml-coload-smoke
• ./packages/fabric/test/integration
• ./packages/inference-addon-cpp/mobile
• ./packages/sdk/e2e
• ./packages/llm-llamacpp/benchmarks/performance
• ./packages/llm-llamacpp/benchmarks/server
• ./packages/vla-ggml/sim/server
• ./packages/embed-llamacpp/benchmarks/performance
• ./packages/embed-llamacpp/benchmarks/server
• ./packages/asr-ggml/benchmarks/server