Sweep-cleanup of CI workflows, templates, and docs for references to
microcrates and micro-* feature flags that have been deleted or are
queued for deletion via absorption PRs #52 #54 #55 #56 #57 #58.

Changes:
- .github/workflows/ci.yml - removed deleted features (micro-lock,
  micro-plan, micro-policy, micro-process, micro-store) from BDD matrix
- .github/workflows/mutation.yml - removed shipper-plan, shipper-policy,
  shipper-levels from the mutation-testing target list
- .github/workflows/release.yml - added note that publish order is
  finalized in Phase 8 of the decrating plan
- templates/circleci-config.yml - matching feature-matrix cleanup
- docs/architecture.md - per-crate absorbed notes in microcrates table
  plus top-of-section notes on Dependency Graph and Module
  Responsibilities pointing out those sections reflect pre-decrating state
- docs/testing.md - removed deleted crates from example test invocations
  and the mutation-testing example
- RELEASE_CHECKLIST_v0.3.0.md - header note listing absorbed crates and
  pruned publish steps
- RELEASE_NOTES_v0.3.0.md - reworded Modular Architecture bullet to
  reflect the consolidated public-crate layout

References to still-in-flight absorptions (auth, environment, git, storage,
engine-parallel, registry, progress) are left alone - they will be cleaned
up in their respective absorption PRs.

Per docs/decrating-plan.md.

Sweep-cleanup of CI workflows, templates, and docs for references to
microcrates and micro-* feature flags that have been deleted or are
queued for deletion via absorption PRs #52 #54 #55 #56 #57 #58.

Changes:
- .github/workflows/ci.yml - removed deleted features (micro-lock,
  micro-plan, micro-policy, micro-process, micro-store) from BDD matrix
- .github/workflows/mutation.yml - removed shipper-plan, shipper-policy,
  shipper-levels from the mutation-testing target list
- .github/workflows/release.yml - added note that publish order is
  finalized in Phase 8 of the decrating plan
- templates/circleci-config.yml - matching feature-matrix cleanup
- docs/architecture.md - per-crate absorbed notes in microcrates table
  plus top-of-section notes on Dependency Graph and Module
  Responsibilities pointing out those sections reflect pre-decrating state
- docs/testing.md - removed deleted crates from example test invocations
  and the mutation-testing example
- RELEASE_CHECKLIST_v0.3.0.md - header note listing absorbed crates and
  pruned publish steps
- RELEASE_NOTES_v0.3.0.md - reworded Modular Architecture bullet to
  reflect the consolidated public-crate layout

References to still-in-flight absorptions (auth, environment, git, storage,
engine-parallel, registry, progress) are left alone - they will be cleaned
up in their respective absorption PRs.

Per docs/decrating-plan.md.

PR #60 landed shim absorption (re-exports from crate::state::events and
crate::state::execution_state pointing at standalone crates) because
shipper-store (PR #57) and shipper-engine-parallel (PR #64) had trait-
signature deps on them. Both blockers landed via merge train round 2,
unblocking this physical removal.

Move 2821 LOC (events) + 2725 LOC (state) from standalone crates into
crates/shipper/src/state/events/ and crates/shipper/src/state/execution_state/
as absorbed modules.

Events split into three files:
 - mod.rs (production: EventLog, EVENTS_FILE, events_path)
 - tests.rs (unit + insta snapshot tests)
 - proptests.rs (property-based tests)

Execution-state split into two files:
 - mod.rs (production: atomic write, migration, encrypted I/O)
 - tests.rs (unit + snapshot tests; nested proptests + proptests_extended
   submodules preserved)

Snapshots relocated and renamed for the new module path
(shipper__state__events__tests__* and
shipper__state__execution_state__tests__*).  Integration test moved to
crates/shipper/tests/state_integration.rs (was
crates/shipper-state/tests/state_integration.rs) with imports rewritten to
use shipper::state::execution_state::*.

shipper-events fuzz target (fuzz/fuzz_targets/event_log_roundtrip.rs)
repointed to shipper::state::events::EventLog; its shipper-events dep
removed from fuzz/Cargo.toml.

Internal shipper imports rewritten:
 - shipper_events → crate::state::events
 - shipper_state → crate::state::execution_state
 - shipper_environment::collect_environment_fingerprint →
   crate::runtime::environment::collect_environment_fingerprint
   (also already absorbed; execution_state no longer needs the external dep)

Delete crates/shipper-events and crates/shipper-state. Remove from workspace
members and shipper's deps. CLAUDE.md files updated to reflect the now-
physically-absorbed state. docs/architecture.md updated to remove dangling
standalone-crate edges.

Per docs/decrating-plan.md §6 Phase 2 follow-up + §6.A R-PR-1..R-PR-5.

Validation: cargo check --workspace, cargo test -p shipper (1640 lib +
integration tests), cargo test -p shipper-cli, cargo clippy --workspace
--all-targets --all-features -- -D warnings, cargo fmt --all -- --check —
all green.

…-tp-proof-2026-05-23

merge: backfill shipper Trusted Publishing proof sync