Initial commit: AutoBlogger v0.1.0

WordPress plugin that auto-researches topics from Reddit, generates
SEO-optimized articles via OpenRouter LLMs, runs them through a chief
editor agent, and publishes on a daily schedule.

Includes:
- Full generation pipeline (collect → analyze → score → generate → review → publish)
- Cost tracking and budget enforcement
- Admin UI: settings, review queue, metrics, activity log
- CI/CD pipeline (GitHub Actions → WordPress REST deploy)
- Unit test suite (PHPUnit + Brain Monkey)
- Structured logging with configurable verbosity

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

includes/admin/class-log-viewer.php

@@ -0,0 +1,84 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Admin page displaying structured application log entries.
+ *
+ * Provides level filtering (error/warning/info/debug), text search,
+ * pagination, and a one-click "Clear Old Logs" action. Reads from the
+ * ab_event_log table via Autoblogger_Logger::query().
+ *
+ * Triggered by: Autoblogger::register_admin_hooks() on `admin_menu`.
+ * Dependencies: Autoblogger_Logger.
+ *
+ * @see core/class-logger.php              — Writes log entries and provides query().
+ * @see templates/admin/log-viewer.php     — Renders the HTML.
+ * @see class-autoblogger.php              — Registers the AJAX clear action.
+ */
+class Autoblogger_Log_Viewer {
+
+	/**
+	 * Register the log viewer submenu page under AutoBlogger.
+	 *
+	 * @return void
+	 */
+	public function on_register_menu(): void {
+		add_submenu_page(
+			'autoblogger-settings',
+			__( 'Activity Log', 'autoblogger' ),
+			__( 'Activity Log', 'autoblogger' ),
+			'manage_options',
+			'autoblogger-logs',
+			[ $this, 'render_page' ]
+		);
+	}
+
+	/**
+	 * Render the log viewer page.
+	 *
+	 * @return void
+	 */
+	public function render_page(): void {
+		if ( ! current_user_can( 'manage_options' ) ) {
+			return;
+		}
+
+		$level  = isset( $_GET['level'] ) ? sanitize_key( $_GET['level'] ) : 'all';
+		$search = isset( $_GET['s'] ) ? sanitize_text_field( wp_unslash( $_GET['s'] ) ) : '';
+		$paged  = isset( $_GET['paged'] ) ? absint( $_GET['paged'] ) : 1;
+
+		$result      = Autoblogger_Logger::query( $level, $search, $paged, 50 );
+		$rows        = $result['rows'];
+		$total       = $result['total'];
+		$total_pages = (int) ceil( $total / 50 );
+
+		include AUTOBLOGGER_PLUGIN_DIR . 'templates/admin/log-viewer.php';
+	}
+
+	/**
+	 * AJAX handler: clear logs older than 30 days.
+	 *
+	 * Side effects: deletes rows from ab_event_log.
+	 *
+	 * @return void
+	 */
+	public function on_ajax_clear_logs(): void {
+		check_ajax_referer( 'autoblogger_clear_logs', 'nonce' );
+
+		if ( ! current_user_can( 'manage_options' ) ) {
+			wp_send_json_error( [ 'message' => __( 'Insufficient permissions.', 'autoblogger' ) ], 403 );
+			return;
+		}
+
+		$days    = isset( $_POST['days'] ) ? absint( $_POST['days'] ) : 30;
+		$deleted = Autoblogger_Logger::prune( $days );
+
+		wp_send_json_success( [
+			'message' => sprintf(
+				/* translators: %d: number of entries deleted */
+				__( '%d log entries cleared.', 'autoblogger' ),
+				$deleted
+			),
+		] );
+	}
+}