chore(release): bump version to 0.7.0

[ferhimedamine]

Release v0.7.0

Minor release — 44 commits since v0.6.0 (2026-05-21), including new subcommands, new distribution channels, security patches, and dependency updates.

New Features

• dk memory batch-recall — filter-based bulk memory recall (DAK-6584, feat: add batch-recall and hybrid-search memory subcommands (DAK-6584) #101)
• dk memory hybrid-search — BM25 + vector hybrid search subcommand (DAK-6584, feat: add batch-recall and hybrid-search memory subcommands (DAK-6584) #101)
• cargo-dist release pipeline — pre-built binaries for Linux/macOS via cargo-dist (feat(DAK-5407): cargo-dist release pipeline + homebrew-tap #80)
• Linux package managers — Snap, APT/deb, YUM/RPM distribution channels (feat(DAK-5411): Linux package managers — Snap, APT/deb, YUM/RPM #81)
• cargo-binstall metadata — pre-built binary download support (feat(dak-5405): add cargo-binstall metadata to Cargo.toml #78)

Bug Fixes

• fix: pass agent_id to get_memory() — adapter to breaking change in dakera-client v0.11.57 (286c976)
• fix: playground badge URL → dakera.ai/playground (fix: playground badge URL → dakera.ai/playground #107)
• fix(ci): patch RUSTSEC-2026-0185 (quinn-proto) + clear ARM cache corruption (fix(ci): patch RUSTSEC-2026-0185 (quinn-proto) + clear ARM cache corruption #108)

Security

• RUSTSEC-2026-0185 (quinn-proto) patched via dakera-client upgrade (fix(ci): patch RUSTSEC-2026-0185 (quinn-proto) + clear ARM cache corruption #108)

Dependencies

• dakera-client: 0.11.53 → 0.11.98 (picks up smart_score fix, entity improvements, temporal routing, multi-hop, ML detection from CEs 132–137)
• anyhow: 1.0.102 → 1.0.103
• indicatif: 0.17.11 → 0.18.4
• actions/* bumps

CI & Distribution

• Install-test CI workflow for all distribution channels
• ARM64 cache key unification + stale cache purge improvements
• cargo-dist pipeline integration

Documentation

• Added Homebrew/APT/YUM/binstall install methods
• Orange playground badge
• LoCoMo benchmark score badge 88.2%

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CI gate: merge when all green → then git tag v0.7.0 && git push origin v0.7.0 to trigger release workflow.