Apply v1.0.17

[nettrash]

Bug fixes:

• PostgreSQL version agnostic handling of attstattarget
  attribute.
• Replaced double .unwrap() in the dump serialization
  path with proper error propagation so a serde_json
  failure surfaces as a readable error instead of a
  panic.
• compare_types no longer emits a stray
  -- Multirange … is created automatically comment for
  new range types. PostgreSQL auto-creates the
  companion multirange row when CREATE TYPE … AS RANGE
  runs, so the comparer now skips new-in-to
  multiranges in the CREATE branch (symmetric to the
  existing skip in the DROP branch). The skip is
  deliberately scoped to the new-type branch only — an
  existing multirange whose owner, comment, or ACL
  differs between dumps still reaches
  get_alter_script and emits the corresponding
  COMMENT ON TYPE / ALTER TYPE … OWNER TO. This
  was the leading cause of diffs looking "empty" on
  schemas that added a new range type.

Reliability:

• Added FILL_SIBLING_BRANCH_COUNT constant with a
  compile-time arity guard against the outer try_join!
  in Dump::fill, plus a runtime warning when
  --max-connections / MAX_CONNECTIONS is below the
  number of parallel dump branches (pool starvation
  would otherwise go unnoticed).
• Config::load now warns when FROM_* and TO_*
  resolve to the same host+port+database+schema, which
  almost always means a typo in the config file and
  silently produces an empty diff.

Tooling:

• CI build job runs against both Rust 1.88.0 (floor)
  and 1.95.0 (matches the Dockerfile toolchain), so the
  shipped Docker image toolchain is CI-validated.
• Dockerfile version / org.opencontainers.image.version
  labels are now filled from ARG PGC_VERSION wired
  through GitHub Actions from app/Cargo.toml — no
  more hard-coded version skew on release.

UX / Docs:

• Fixed copy-pasted --server help text on --port
  and --scheme; documented the SIMILAR TO matching
  behaviour of --scheme (e.g. public|app) and
  expanded --grants-mode to describe ignore /
  addonly / full explicitly.
• Added explanatory comments at every
  recreated_tables.insert() site documenting the
  coupling with compare_grants default-ACL handling
  for dropped-and-recreated tables.

Tests:

• New buffer-ordering tests pin the emission order of
  the comparer's post-script buffers:
  sequence_post_script → type_post_script →
  enum_post_script → trigger_post_script.
• Replaced .find().unwrap() assertions in the
  clear-script tests with a helper that panics with
  the full script, so ordering-test failures are
  actionable.
• New multirange regression tests covering both sides
  of the fix:
  compare_types_multirange_not_created_independently
  (symptom fix) and
  compare_types_multirange_comment_change_still_emits_alter
  (guards against over-broad skipping — a metadata
  ALTER on an existing multirange must still emit).

[Copilot]

Pull request overview

Release bump to v1.0.17 focusing on PostgreSQL-dump correctness, improved reliability/UX warnings, and updated CI/Docker tooling alignment.

Changes:

• Fix dump/comparison correctness (attstattarget type handling, multirange create-path noise removal) and improve error propagation for dump serialization.
• Add reliability warnings (connection pool sizing vs parallel dump branches; FROM/TO config targeting the same DB+schema).
• Update tooling/docs/tests (Rust CI matrix, Docker labels sourced from crate version, CLI help text, regression/ordering tests).

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
app/src/main.rs	Improves CLI help text for connection params, --scheme matching semantics, and --grants-mode explanation.
app/src/dump/table.rs	Casts attstattarget to int4, refactors column query builder for testability, and updates stattarget parsing.
app/src/dump/core.rs	Adds parallel-branch count constant + pool-size warning; replaces unwrap() serialization path with error propagation; adds arity “guard”.
app/src/config/core.rs	Warns when FROM and TO resolve to the same host/port/database/scheme to avoid silent empty diffs.
app/src/comparer/core.rs	Skips new-in-to multirange types in CREATE branch to avoid emitting no-op output.
app/src/comparer/core_tests.rs	Adds multirange regressions and buffer-ordering tests to pin script concatenation order.
app/Cargo.toml	Bumps crate version to 1.0.17.
app/Cargo.lock	Updates lockfile version entry for 1.0.17.
Dockerfile	Updates Rust toolchain image and sources version/OCI labels from PGC_VERSION build arg.
CHANGELOG	Adds v1.0.17 release notes.
.github/workflows/rust.yml	Runs CI against Rust 1.88.0 and 1.95.0; wires crate version into Docker build args for labels.

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