postline 0.2.1

Safer delivery.

• A send that ends without a clear answer (timeout, dropped connection, 5xx, or LinkedIn accepting a post without returning its id) is now recorded as uncertain and never retried automatically; previously it was failed and retried, which could post twice
• Bluesky posts use a fixed record key per post, and postline looks it up before posting, so retries can't create a duplicate
• Webhook timeouts and 5xx responses are uncertain too; 4xx responses are still retried
• publish, daemon checks, retry and mark hold .postline/publish.lock, so two processes on one project can't send the same post
• A card that fails to render no longer uses up a publish attempt
• The ledger is flushed to disk before it replaces the old one
• postline init pins the generated GitHub workflow to its own version and installs it from npm; the workflow no longer adds a maintainer Co-authored-by line to your ledger commits
• Install from npm: npm install --global postline
• New license: the Nsisong Source-Available License 1.1 (see LICENSE). Earlier grants are preserved in LICENSE.previous

Install: npm install --global postline@0.2.1 (once published to npm), or npm install --global https://github.com/1cbyc/postline/releases/download/v0.2.1/postline-0.2.1.tgz.