chore: bump version to 0.5.3 and update docs for release

Changelog, README, FEATURES, roadmap, and Jekyll docs updated with
v0.5.3 release notes — Copy for LLM (#94), default credentials
protection, MySQL index fix (#96), and comment-aware config detection.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: AnjanJ

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.3] - 2026-03-25
+
+### Added
+- **"Copy for LLM" button on error detail page (#94)** — One-click copy of error details as clean Markdown, optimized for pasting into an LLM session. Conditional sections: app backtrace (framework frames filtered), exception cause chain, local/instance variables, request context, breadcrumbs (last 10), environment, system health, related errors with similarity %, and metadata. Sensitive data stays `[FILTERED]` (@paul)
+- **Default credentials protection** — App refuses to boot in production with `gandalf/youshallnotpass` or blank credentials (raises `ConfigurationError`). Dashboard shows a reminder banner in all environments until credentials are changed. Adds `default_credentials?` helper to Configuration
+
+### Fixed
+- **MySQL index key too long on swallowed_exceptions (#96)** — Composite unique index totalled 5042 bytes under `utf8mb4`, exceeding MySQL's 3072-byte InnoDB limit. Reduced `exception_class`, `raise_location`, and `rescue_location` from 255/500/500 to 250/250/250 (3022 bytes total). Includes fix migration for existing installations (@gmarziou)
+- **Install generator matched config values inside comments** — The `detect_existing_config` regex for `use_separate_database` and `database` name could match commented-out lines, causing single-DB apps to be misidentified as separate-DB on upgrade. Both regexes now anchored with `^\s*` to skip comments
+
+---
+
 ## [0.5.2] - 2026-03-25
 
 ### Added

README.md

@@ -154,9 +154,9 @@ config.enable_git_blame = true
 </details>
 
 <details>
-<summary><strong>Error Replay — Copy as cURL / RSpec</strong></summary>
+<summary><strong>Error Replay — Copy as cURL / RSpec / LLM Markdown</strong></summary>
 
-Replay failing requests with one click. Copy the request as a cURL command or generate an RSpec test from the captured error context.
+Replay failing requests with one click. Copy the request as a cURL command, generate an RSpec test, or **copy all error details as clean Markdown** for pasting into an LLM session. The LLM export includes app backtrace, cause chain, local/instance variables, breadcrumbs, environment, system health, and related errors — with framework frames filtered and sensitive data preserved as `[FILTERED]`.
 
 [Complete documentation →](docs/FEATURES.md#error-details-page)
 </details>

ROADMAP.md

@@ -1,6 +1,6 @@
 # Rails Error Dashboard — Roadmap
 
-> Last updated: March 25, 2026 | Current version: v0.5.2
+> Last updated: March 25, 2026 | Current version: v0.5.3
 > Deep introspection analysis: [DEEP_INTROSPECTION_ANALYSIS.md](DEEP_INTROSPECTION_ANALYSIS.md)
 > Faultline comparison: [FAULTLINE_COMPARISON.md](FAULTLINE_COMPARISON.md)
 > Time-series strategy: [TIMESERIES_ANALYSIS.md](TIMESERIES_ANALYSIS.md)

_getting_started/features.md

@@ -31,8 +31,8 @@ Core features that are always enabled - no configuration needed:
 **📊 Advanced Analytics (7 features)**
 - Baseline Alerts, Fuzzy Matching, Co-occurring Errors, Error Cascades, Correlation, Platform Comparison, Occurrence Patterns
 
-**🔍 Developer Tools (6 features)**
-- Source Code Integration, Git Blame, Breadcrumbs, System Health Snapshot, Job Health Page, Database Health Page
+**🔍 Developer Tools (7 features)**
+- Source Code Integration, Git Blame, Breadcrumbs, System Health Snapshot, Job Health Page, Database Health Page, Copy for LLM (Markdown export)
 
 **🔬 Deep Debugging (6 features)** — v0.4.0
 - Local Variable Capture, Instance Variable Capture, Swallowed Exception Detection, On-Demand Diagnostic Dump, Rack Attack Event Tracking, Process Crash Capture

docs/FEATURES.md

@@ -31,8 +31,8 @@ Core features that are always enabled - no configuration needed:
 **📊 Advanced Analytics (7 features)**
 - Baseline Alerts, Fuzzy Matching, Co-occurring Errors, Error Cascades, Correlation, Platform Comparison, Occurrence Patterns
 
-**🔍 Developer Tools (6 features)**
-- Source Code Integration, Git Blame, Breadcrumbs, System Health Snapshot, Job Health Page, Database Health Page
+**🔍 Developer Tools (7 features)**
+- Source Code Integration, Git Blame, Breadcrumbs, System Health Snapshot, Job Health Page, Database Health Page, Copy for LLM (Markdown export)
 
 **🔬 Deep Debugging (6 features)** — v0.4.0
 - Local Variable Capture, Instance Variable Capture, Swallowed Exception Detection, On-Demand Diagnostic Dump, Rack Attack Event Tracking, Process Crash Capture
@@ -981,6 +981,7 @@ This is a **self-hosted only feature** — impossible for SaaS error trackers. W
 - **Custom authentication** via `config.authenticate_with` lambda — use Devise, Warden, session-based, or any auth system
 - **Configurable credentials** via environment variables
 - **Fail-closed security** — lambda errors are rescued, logged, and result in 403 Forbidden
+- **Default credentials protection** — App refuses to boot in production with default (`gandalf/youshallnotpass`) or blank credentials. Dashboard shows a reminder banner in all environments until credentials are changed
 
 ### Data Privacy
 - **Self-hosted** - all data stays on your infrastructure

lib/rails_error_dashboard/version.rb

@@ -1,3 +1,3 @@
 module RailsErrorDashboard
-  VERSION = "0.5.2"
+  VERSION = "0.5.3"
 end