release v0.1.108

[ranxianglei]

Changes since v0.1.107

Features

• Session-file encryption at rest ([Feature] Can bili context encrypt the data files it outputs? #708, PR feat: encrypt session files at rest behind BILI_ENCRYPTION_KEY (#708) #711): opt-in BILI_ENCRYPTION_KEY (hex/base64, exactly 32 bytes) encrypts session state files with AES-256-GCM (+ zstd compression where Node >= 22.15); eager one-time re-encryption of legacy plaintext files at boot; off by default with zero behavior change when unset.
• promptPack (PR feat(compress): promptPack — kernel pack resolution wired through all three wire paths #730): named kernel pack surface per request.

Fixes

• Recover preflight from empty SSE summaries + dead-end cooldown gating ([Bug] Codex 额度中断后恢复长会话，preflight SSE 摘要为空并持续 502 #726).
• Sweep orphaned .tmp-enc-* temps left by a crashed encryption migration ([Feature] Can bili context encrypt the data files it outputs? #708).

Tests

• Deterministic fake-upstream real-codex compression E2E (PR test: deterministic fake-upstream real-codex compression E2E (#686) #715).

Docs

• Paper preprint v0.2 (EN+ZH) + figures + README links (PR docs: add paper preprint v0.2 (EN+ZH) + README links #733).
• Encryption threat-model documentation: owner-confirmed two-scenario framing, same-trust-domain double-encryption rationale.

Build

• Pin acp-kernel 0.0.66 (packs module + StateStoreCodec live on npm).

Pre-flight (local, same checks as CI)

• npm run typecheck — clean
• npm test — 1439 pass / 0 fail / 2 skipped (e2e-gated)
• npm run build — success

[github-actions]

📦 Built Package Artifact

Branch: 2026-09-13_release-v0.1.108 (b7ba22c)

Option A — Install from npm PR tag (recommended)

npm install -g billion-context@pr-738

Each push to this PR publishes a new version under the pr-738 npm tag.

Option B — Download artifact

1. Download the artifact from the Actions run
2. Extract the tarball and install:

tar xzf billion-context-pr738.tgz
npm install -g package

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This comment is automatically updated on each push.