[ADD] rj_disponible

[robhert]

Note: Please ensure you have read the [README](https://github.com/textpattern/textpattern-curated-plugins-list/blob/master/README.md) file prior to filing this issue.

Name of plugin (including author prefix)
rj_disponible

Please complete as much of the JSON template below as is possible/relevant

{
  "name": "rj_disponible",
  "repositories": [
    {
      "repoType": "github",
      "repoUrl": "https://github.com/robhert/rj_disponible"
    }
  ],
  "require": {
    "php": ">=7.4",
    "textpattern": ">=4.8"
  },
  "stable": {
    "version": "0.2.0",
    "datePublished": "2025-12-26",
    "downloadUrlTxt": "https://github.com/robhert/rj_disponible/releases/download/v0.2.0/rj_disponible_v0.2.txt",
    "downloadUrlPhp": "https://github.com/robhert/rj_disponible/releases/download/v0.2.0/rj_disponible_v0.2.php",
    "phpHasManifest": false
  }
}

Textpattern min and max compatibility of latest plugin version, if known (x all that apply)
Textpattern version compatibility:

• 4.9
• 4.8
• 4.7
• 4.6
• 4.5

Brief description of plugin (optional)
Simple availability status indicator. Adds a Yes/No preference toggle in Site Preferences and a template tag <txp:rj_disponible /> to display "Available for projects" or "Not available". Bilingual support (English/Spanish).

Author: Robhert Pimentel (rj)
Author website: https://pimentel.pe

Administration reference (submitter to leave as-is)

• JSON added to repo & verified
• Create or verify author on site
• Article published