docs: cleanup changelog for 0.7.0

[mmols]

This PR cleans up unreleased changes to properly reflect user-facing items since our last release. It manipulates a timestamp or two to push Supporting services to the top, and merges together some past changie entries into higher level items.

v0.7.0 - 2026-03-25

Added

• Supporting services (beta) — Deploy supporting services alongside databases. This release includes the pgEdge Postgres MCP Server, with automatic database credential provisioning, high-availability connection routing, and declarative configuration.
• Added patroni_port to the database and instance APIs.
• Added ability to configure per-component log levels.
• Added a default value for the host_id configuration setting. It will now default to the short hostname (hostname -s) of the host machine.
• Added guided walkthrough with GitHub Codespaces support.
• Added support for Postgres 16.13, 17.9, and 18.3. Default version is now 18.3.
• Added stop/start instance operations to the client library.
• Etcd mode reconfiguration — Hosts can now switch between etcd server and client modes at runtime, with support for host identity changes via peer URL updates.
• Scoped tasks and new task endpoints — Tasks are now scoped to databases and hosts, with new list/get endpoints for better observability. The remove-host API now returns a task for tracking removal progress.
• Stable random port assignments — Randomly assigned ports now persist across instance restarts and database updates.

Changed

• Improved disaster recovery — Better quorum loss handling, host removal resilience, and crash recovery.
• Breaking: Replaced hostname and ipv4_address fields in the API with peer_addresses and client_addresses for host endpoints and addresses for instance and service instance endpoints.

Fixed

• Fixed a bug that prevented database deletion when we failed to create the Swarm service.
• Replaced fixed 100-second sync wait when adding a node with configurable health-based polling.
• Fixed sync event refresh blocking updates when Spock node is not configured.
• Fixed panics during task and workflow cancellation.
• Fixed add-node failing silently when Spock sync event is not confirmed.
• Fixed incomplete server shutdown that could leave the workflow engine running without required services.
• Fixed stale resource state blocking updates.
• Fixed IPAM subnet exhaustion after repeated database create/delete cycles by releasing subnets on network deletion.

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 33d4bf1 and 288a339.

📒 Files selected for processing (1)

• changes/unreleased/Added-20260324-100004.yaml

🚧 Files skipped from review as they are similar to previous changes (1)

• changes/unreleased/Added-20260324-100004.yaml

---

📝 Walkthrough

Walkthrough

Removed multiple dated unreleased changelog entries, updated text in a few existing entries, and added a set of new Added/Changed/Fixed YAML entries under changes/unreleased. No code, runtime logic, or public API/entity declarations were modified.

Changes

Cohort / File(s)	Summary
Removed Added entries changes/unreleased/Added-20260109-223536.yaml, changes/unreleased/Added-20260114-162946.yaml, changes/unreleased/Added-20260114-173755.yaml, changes/unreleased/Added-20260115-010344.yaml, changes/unreleased/Added-20260122-185129.yaml, changes/unreleased/Added-20260209-091508.yaml, changes/unreleased/Added-20260209-091526.yaml, changes/unreleased/Added-20260216-213934.yaml	Deleted eight prior "Added" release-note files (etcd client/server reconfiguration, host-scoped tasks, non-database tasks, Host API fields, peer URL updates, client service JSON tags, database listing response, quorum recovery notes).
Removed Changed entries changes/unreleased/Changed-20260114-163406.yaml, changes/unreleased/Changed-20260209-091536.yaml, changes/unreleased/Changed-20260306-155827.yaml, changes/unreleased/Changed-20260306-160015.yaml	Deleted four prior "Changed" release-note files describing API/response changes and address field/schema replacements for host/instance endpoints.
Text refinements changes/unreleased/Added-20260225-091421.yaml, changes/unreleased/Fixed-20260218-230320.yaml, changes/unreleased/Fixed-20260220-191533.yaml	Updated changelog text: removed a host-specific qualifier and clarified/simplified two fix descriptions (minor wording edits only).
New Added entries changes/unreleased/Added-20260324-100001.yaml, changes/unreleased/Added-20260324-100002.yaml, changes/unreleased/Added-20260324-100004.yaml, changes/unreleased/Added-20260324-100005.yaml, changes/unreleased/Added-20260324-100006.yaml, changes/unreleased/Added-20260324-100007.yaml, changes/unreleased/Added-20260324-100009.yaml	Added seven new "Added" release-note files covering supporting services deployment (pgEdge MCP), a guided Codespaces walkthrough, Postgres version additions and default change, client stop/start operations, etcd mode reconfiguration and peer updates, scoped tasks and task endpoints, and stable random port assignments.
New Changed entries changes/unreleased/Changed-20260324-100003.yaml, changes/unreleased/Changed-20260324-100004.yaml	Added two "Changed" entries: improved disaster recovery handling and a breaking API schema change replacing hostname/ipv4_address with peer_addresses/client_addresses/addresses.
New Fixed entries changes/unreleased/Fixed-20260324-100001.yaml, changes/unreleased/Fixed-20260324-100002.yaml, changes/unreleased/Fixed-20260324-100003.yaml, changes/unreleased/Fixed-20260324-100004.yaml, changes/unreleased/Fixed-20260324-100006.yaml	Added five "Fixed" entries addressing task/workflow cancellation panics, add-node sync confirmation, incomplete server shutdown, stale resource state blocking updates, and IPAM subnet exhaustion on repeated create/delete cycles.

Poem

🐇 I nibble on bytes and tidy the log,
Old notes hop away through a neat little fog.
New entries sprout—ports, Postgres, and care,
Etcd and tasks settle warm in their lair.
Hooray for a changelog all fresh and aware!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'docs: cleanup changelog for 0.7.0' accurately and concisely describes the main change: reorganizing and cleaning up unreleased changelog entries for the v0.7.0 release.
Description check	✅ Passed	The PR description provides a clear summary and comprehensive changelog for v0.7.0 with Added, Changed, and Fixed sections. However, the Testing and Checklist sections from the template are missing.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/release-0.7.0-changes

---

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[tsivaprasad]

The following unreleased files have not been updated:
Added-20260225-091421.yaml
Added-20260303-092813.yaml
Added-20260306-160121.yaml

Is there any reason for this, and are these files in good?

[mmols]

@tsivaprasad

The following unreleased files have not been updated:
Added-20260225-091421.yaml
Added-20260303-092813.yaml
Added-20260306-160121.yaml

Is there any reason for this, and are these files in good?

These all looked good as-is, so i kept them as-is.

[rshoemaker]

Looks good.