Add changelog; track dev/config.json (dummy keys only)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -0,0 +1,23 @@
+# Changelog
+
+## v0.1.0
+
+First release.
+
+- **Movies / Series:** search Radarr and Sonarr as you type, add titles with quality profile, root
+  folder, monitoring and optional automatic search ("Search now" is turned off when nothing would be
+  monitored, since Radarr/Sonarr skip unmonitored items).
+- **Interactive release search:** list releases with approval/rejection reasons, sort, hide
+  rejected ones, filter by quality, codec (x265/x264/AV1), HDR/DV, audio format (Atmos, TrueHD, DTS,
+  DD+, ...) and language, and grab one. Series: pick a season or an episode.
+- **Library:** movies and series side by side, each with its own status filter, text filter and
+  file-property filter (quality, codec, HDR/DV, audio, language). Filter dialog changes apply live
+  and only offer options that match something. Toggle monitoring, start automatic searches.
+- **Series drill-down:** seasons and episodes with monitoring, automatic search and release search.
+- **Downloads:** SABnzbd queue and history plus the Radarr and Sonarr queues; pause/resume, delete,
+  retry, remove and blocklist.
+- **Posters:** thumbnails in the detail panes (half-block rendering, any color terminal).
+- **Log (F5) and popups:** feedback appears as fading popups; the log keeps the history.
+- Connection indicators for all three services, context-sensitive key hints, `?` help.
+- JSON config with environment overrides (`ARR_TUI_*`), `--version`, cross-platform builds
+  (`make dist`).