Added

• Private messaging: /tell (aliases /msg, /w), /r to reply to whoever you last exchanged a tell with (either direction), and /socialspy for staff to watch other players' tells. Standalone, same-server only for now. Off by default (modules.tell.enable: false) — plenty of servers already run their own tell/msg solution and this shouldn't start competing with it uninvited. Formats and messages live in a new tell.yml. The recipient's copy includes a clickable [reply] by default (<reply> placeholder, reply_button in tell.yml). A vanished player (any vanish plugin — detected via Player#canSee, not a specific plugin's own convention) never shows up in tab-complete or as a reachable target, indistinguishable from being offline, unless the sender has chat.tell.vanish.bypass. chat.tell.spy.bypass makes a player's tells fully invisible to /socialspy watchers (not just redacted) while still always logging to console. When enabled, /tell itself is open to everyone unless restrict: true in tell.yml, in which case it needs chat.tell — that node, like every other one this release adds, is hardcoded rather than configurable, so a typo can never silently break the command server-wide.
• Chat color GUI: bare /chatcolor (still needs chat.setcolor) now opens a picker instead of printing a usage message — the 16 standard colors as dyed leather chestplates (a real RGB match per color, not an approximated wool/dye swatch), a reset button, and a book that opens an anvil-based hex picker with a live color preview as you type. Typed /chatcolor <color> also now accepts MiniMessage color tags (<red>, <#4dc3ff>), not just legacy &c/hex #rrggbb. The book/hex-picker can be turned off (menu.hex_picker: false) or pointed at a server's own custom GUI command instead (custom + menu.hex_picker_command) — useful since Paper has no way to give an already-open anvil a real title, so a custom-font GUI-texture background can't apply to that one screen the way it can the rest of the menu. Every icon in both screens is reskinnable per-role through ItemsAdder (menu.itemsadder.* in color.yml), falling back to the plain vanilla item whenever ItemsAdder isn't installed or the configured ID isn't found.
• Join/quit/first-join messages: custom join/quit/first_join broadcasts (new joinquit.yml). Off by default (modules.joinquit.enable: false), same reasoning as tell above — plenty of servers already have their own join/quit message plugin. <player> is always available, <online>/<max> are supported but left out of the shipped defaults. chat.join.bypass silences all three for a player, in either direction — covers vanished staff without needing to detect any particular vanish plugin's state.
• Paper Hangar listed alongside the existing download page and GitLab Releases as an official distribution channel.

Changed

• Full documentation moved off this repo's own docs/ (now removed) onto deepslate.ch as the single canonical source, instead of two copies that could drift out of sync with each other.
• config.yml, and the other module config files, reorganized into clearly labeled sections (general/channel/update-checker/console messages, then modules grouped by Chat/Integrations/Maintenance) — no keys renamed or moved, purely cosmetic after several releases' worth of additions had piled up with no structure.
• ItemsAdder's :emoji_name: tab-complete/suggestion logic, previously private to ChannelCommand, extracted into a shared EmojiSuggestions so /tell could reuse it instead of a second copy.