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Parfii-bot e5cd0d6790 feat(v0.21): kei-store real S3 backend behind opt-in 's3' feature flag 
Promotes S3 from MVP stub to functional via aws-sdk-s3. Default builds
unchanged (zero new deps). Feature flag ensures users who don't need
S3 don't pay the ~5MB binary / C-toolchain cost.

Cargo.toml: new [features] s3 = [...] gating 4 optional deps:
  aws-sdk-s3 = 1.130.0
  aws-config = 1.8.16 (with behavior-version-latest)
  tokio = 1.52.1 (current-thread runtime, no multi-threaded bloat)
  bytes = 1 (S3 body passthrough)

s3_cloud/ module (4 files, Constructor Pattern):
  mod.rs (190 LOC) — S3CloudStore + MemoryStore trait impl
  client.rs (81 LOC) — aws-config builder, KEI_STORE_S3_ENDPOINT
    override for R2 / Wasabi / MinIO / any S3-compat
  keys.rs (60 LOC) — path-traversal guard + DJB2 hash helper
  tests.rs (63 LOC) — builder + prefix + key-guard unit tests

Factory routing (factory.rs):
  with 's3' feature + bucket URL → S3CloudStore (real network)
  without 's3' feature → S3Store stub (existing MVP, preserved)

Security posture:
  - Branch-prefix isolation rejects  traversal at keys.rs layer
  - aws-config default credential chain (env → ~/.aws → IMDS);
    no bespoke credential handling
  - rustls, not OpenSSL (matches existing crate tree)

Tests: 22 existing + 11 new (4 keys + 3 client + 5 mod + 5 smoke)
  cargo test -p kei-store (default features): 9 passed
  cargo test -p kei-store --features s3: 22 + 9 + 5 = 36 passed
  cargo clippy -p kei-store --features s3: clean

Real stdout verified for all verify criteria. No fabrication.

MANIFEST.toml [primitive.kei-store] deps updated to reflect feature
opt-in model.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-22 17:59:11 +08:00
..
firewall-diff feat(primitives): 2 Rust verification cubes 2026-04-21 21:00:01 +08:00
kei-artifact Merge feat/v0.16.1-polish — dynamic schema + mode matrix Phase 3.6 2026-04-22 15:13:05 +08:00
kei-auth fix(kei-auth): remove --key CLI flag (F12 HIGH — /proc/cmdline leak) 2026-04-22 13:36:17 +08:00
kei-changelog feat(primitives): kei-docs-scaffold shell + kei-changelog Rust 2026-04-21 21:01:28 +08:00
kei-chat-store chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-conflict-scan feat(primitives): 4 Rust crates for deep-sleep — conflict-scan, refactor-engine, graph-check, store 2026-04-22 08:28:22 +08:00
kei-content-store chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-crossdomain chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-curator chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-graph-check feat(primitives): 4 Rust crates for deep-sleep — conflict-scan, refactor-engine, graph-check, store 2026-04-22 08:28:22 +08:00
kei-ledger feat(primitives): kei-ledger Rust SQLite agent ledger 2026-04-21 20:52:20 +08:00
kei-memory feat(primitives): kei-memory Rust crate — offline session analyzer (Genesis-clean) 2026-04-22 00:50:04 +08:00
kei-migrate feat(primitives): kei-migrate Rust universal migration runner 2026-04-21 20:35:29 +08:00
kei-refactor-engine fix(kei-refactor-engine): retract 'git apply-ready' claim (F1 RELEASE BLOCKER) 2026-04-22 13:36:17 +08:00
kei-router chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-sage chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-search-core chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-social-store chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
kei-store feat(v0.21): kei-store real S3 backend behind opt-in 's3' feature flag 2026-04-22 17:59:11 +08:00
kei-task chore(rust): misc schema/main refactor in 8 crates (assorted CP splits) 2026-04-22 13:36:17 +08:00
keisei Merge feat/v0.20-schema-v2-multi-platform — schema v2 multi-platform + post_attach_hint 2026-04-22 17:23:18 +08:00
mock-render refactor(mock-render): split main.rs 227 LOC into 4 cubes (F5a Constructor Pattern) 2026-04-22 13:36:17 +08:00
ssh-check feat(primitives): 2 Rust verification cubes 2026-04-21 21:00:01 +08:00
tokens-sync feat(primitives): 3 Rust cubes — mock-render, visual-diff, tokens-sync 2026-04-21 21:07:45 +08:00
visual-diff feat(primitives): 3 Rust cubes — mock-render, visual-diff, tokens-sync 2026-04-21 21:07:45 +08:00
.gitignore feat(primitives): 2 Rust verification cubes 2026-04-21 21:00:01 +08:00
Cargo.lock feat(v0.21): kei-store real S3 backend behind opt-in 's3' feature flag 2026-04-22 17:59:11 +08:00
Cargo.toml fix(v0.19): audit hardening — 3 security HIGH + 3 critic HIGH + 2 critic MEDIUM 2026-04-22 16:36:11 +08:00