Add project common publication tags

STATE.md

@@ -48,6 +48,25 @@ Current runtime is local infrastructure, not the old VPS.
    - New installs default `site-poster` to disabled and must explicitly set provider,
      base URL, secret, and `site_poster_enabled=true`.
 
+## RAA Duplicate
+
+As of 2026-08-03, the RAA duplicate is a separate Coolify app/database using the
+same codebase shape.
+
+- Local copy path requested by user: `D:\DEVELOPMENT\raa-parser_poster`.
+- Gitea repo: `http://192.168.1.135:3000/exostring/raa-parser_poster.git`.
+- Coolify app UUID: `korokrhpoyqxf0nw2y8vk7lp` (`RAA admin`).
+- Public admin URL: `https://raa.panel.f-n8.ru`.
+- RAA Postgres container: `m9v14hzfh5mk9kelxzcqvhc6`, DB `raa_parser`, user `raa_parser_user`.
+- Raw Telegram media channel setting: `tg_media_channel_id=-1004312015562` (`VK RAW RAA`).
+- Final Telegram publication chat setting: `tg_poster_chat_id=-1001303630155` (`Red Airsoft | Страйкбол`).
+- VK publication owner: `vk_poster_owner_id=-36860851`, `vk_poster_from_group=true`.
+- `TG_BOT_TOKEN`, `TELEGRAM_API_ID`, and `TELEGRAM_API_HASH` were copied from FN-8 Coolify env.
+- Local Bot API app setting: `local_bot_api_url=http://127.0.0.1:8081`.
+- As last checked, publication workers were intentionally disabled:
+  `vk-storage-uploader=false`, `tg-poster=false`, `vk-poster=false`,
+  `tg_poster_enabled=false`, `vk_poster_enabled=false`.
+
 ## Important Text Rules
 
 - AI writer output text must be clean: no physical hashtags at the end.
@@ -58,7 +77,9 @@ Current runtime is local infrastructure, not the old VPS.
 - Publication preview may show hashtags by composing:
   - clean text
   - blank line
-  - `#category #source`
+  - optional project-wide common tags first, then `#category #source`
+- Project-wide common tags live in DB setting `publication_common_tags`.
+  FN-8 value: `#новости_снаряжения`. RAA value: `#raa_news #страйкбол`.
 - The editor textarea must show only clean editable text.
 - The list preview in `/editor` should show the publication preview, including composed hashtags.
 - `build_publication_text()` in `src/vk_parser_app/text_utils.py` is display/composition helper only. Do not use it before writing `final_text` to DB.