Add config printing, explain mode, completions, and docs

docs/CONFIG.md

@@ -43,6 +43,7 @@ refresh_cache = false
 report_format = "text" # text|json|csv
 sidecar_notes = false  # write per-file notes for skipped/failed
 sidecars = false       # move/copy sidecar files (srt, nfo, etc)
+dry_run_summary = false # suppress per-file output (use with --dry-run)
 ```
 
 ## Matching and naming
@@ -50,6 +51,7 @@ sidecars = false       # move/copy sidecar files (srt, nfo, etc)
 min_score = 80         # 0-100 match threshold
 include_id = false     # include tmdb/imdb id in filenames
 no_lookup = false      # skip external providers (filename/LLM only)
+explain = false        # show top candidates when skipped
 ```
 
 ## Quality tags

docs/RELEASING.md

@@ -6,6 +6,8 @@ This repo includes a Gitea Actions workflow that builds Linux binaries for
 ## One-time setup (Gitea Actions)
 1) Create a personal access token with repo write access.
 2) Add it to the repo secrets as `RELEASE_TOKEN`.
+3) Ensure at least one Gitea Actions runner is online.
+4) If uploads fail with `413 Request Entity Too Large`, increase your reverse proxy upload limit (e.g., nginx `client_max_body_size`).
 
 ## Release steps
 1) Update `CHANGELOG.md`.