feat: v0.2.0 — PullPush.io admin UI, version bump, deploy fix

- Remove Reddit OAuth fields (Client ID/Secret) from admin settings
- Add source status indicator showing PullPush.io + .json fallback health
- Add configurable cache TTL, time window, and posts-per-subreddit settings
- Update Test Connections to report which Reddit source is active
- Bump version 0.1.0 → 0.2.0 across plugin header, constant, and readme
- Switch deploy pipeline from zip/REST API to SSH rsync with --delete
- Add LiteSpeed cache purge step to prevent stale OPcache after deploy
- Update CHANGELOG.md and readme.txt for 0.2.0 release

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,35 @@ All notable changes to PRAutoBlogger will be documented in this file.
 Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project uses [Semantic Versioning](https://semver.org/).
 
+## [0.2.0] — 2026-04-12
+
+### Changed
+- **Reddit data source migrated from OAuth to PullPush.io + .json fallback.**
+  Reddit rejected our API application; PullPush.io is free, requires no auth,
+  and provides better subreddit-wide comment search. Reddit .json endpoints
+  serve as an automatic fallback when PullPush is down.
+- Removed Reddit Client ID and Client Secret fields from admin API Keys tab.
+- Updated "Test Connections" results to show which Reddit source is active
+  (PullPush.io or .json fallback) instead of generic "Reddit API connected."
+- Updated "Enabled Sources" checkbox label from "Reddit" to "Reddit (via PullPush.io)".
+
+### Added
+- Source status indicator in API Keys tab showing PullPush.io and Reddit .json
+  availability with live status dots and last-collection timestamp.
+- Configurable research cache TTL (1–72 hours) in Sources tab.
+- Reddit time window selector (24h / week / month) in Sources tab.
+- Posts-per-subreddit limit (5–100) in Sources tab.
+- LiteSpeed cache purge step in CI/CD deploy pipeline.
+
+### Removed
+- `class-reddit-api-client.php` — replaced by `class-pull-push-client.php`
+  and `class-reddit-json-client.php`.
+- Reddit OAuth credential fields and encrypted storage entry.
+
+### Fixed
+- Deploy pipeline now purges LiteSpeed/OPcache after file extraction,
+  preventing stale PHP bytecode from being served.
+
 ## [0.1.0] — 2026-04-10
 
 ### Added