v0.1.0-alpha.4

0.1.0-alpha.4

Status: fourth public alpha crates.io release.

Added

• Added deterministic facade quickstart and first-developer examples for
  AgentApp, live-provider fake fallback, builder-first typed tools,
  checkpoint resume-readiness, and journal-derived token/cost reporting.
• Added FunctionTool::builder(...) in the toolkit so typed tool authoring is
  proven through builders before macro sugar.
• Added agent-sdk-store-file, agent-sdk-store-sqlite,
  agent-sdk-store-postgres, and agent-sdk-store-supabase release coverage
  for durable store adapters over RunJournal, CheckpointStore,
  ContentStore, EventArchive, AgentPoolStore, ToolExecutionStore, and
  ProviderArgumentStore.
• Added SQLite and Postgres-style store crates to the publishable split-crate
  family. The Postgres crate remains a scripted SQL transport contract; live
  connection pools, migrations, RLS, backups, and provisioning are host-owned.

Changed

• ToolExecutionStore is now an explicit rebuildable projection over
  journaled tool records with run, tool-call, effect-id, idempotency-key,
  journal-sequence, and journal-cursor-range reads.
• clawdia-sdk remains unpublished and checkout-only. It can assemble the
  local facade path, but crates.io users should depend on the split crates.
• The local agent-sdk-macros crate remains checkout-only for this release
  because the agent-sdk-macros package name is already occupied on crates.io
  by an unrelated project.

Breaking

• ToolExecutionStore implementers must add effect-id and journal-cursor-range
  lookup methods.