Add Part 9: Module Reference for bundled modules

[briankwest]

Summary

Back-fills per-module documentation for the ~56 bundled FreeSWITCH modules that the topical chapters did not cover — previously these were only name-dropped in the module-loading tables. Every value is verified against the module C source and the shipped conf/vanilla/ configuration, consistent with the manual's existing standard.

New section: Part 9 — Module Reference

docs/module-reference/, grouped by src/mod/ category:

Subcategory	Pages
Applications	21 (mod_curl, mod_lcr, mod_nibblebill, mod_osp, mod_cidlookup, mod_avmd, mod_vmd, mod_voicemail_ivr, …)
Endpoints	mod_h323, mod_opal
Dialplan Engines	mod_dialplan_asterisk, mod_dialplan_directory
File Formats and Streaming	mod_vlc, mod_webm, mod_imagick, mod_opusfile, mod_png, mod_shell_stream
Speech (ASR/TTS)	mod_pocketsphinx, mod_tts_commandline
Events, CDR, and Logging	mod_amqp, mod_erlang_event, mod_event_multicast, mod_smpp, mod_snmp, mod_fail2ban, mod_cdr_pg_csv, mod_format_cdr, mod_json_cdr, mod_odbc_cdr, mod_graylog2
Caching and Data Stores	mod_hiredis, mod_memcache, mod_mongo, mod_redis
XML Interfaces and Directories	mod_xml_rpc, mod_xml_scgi, mod_xml_ldap, mod_ldap
Embedded Languages	mod_basic, mod_managed
(consolidated pages)	Timers (mod_timerfd / mod_posix_timer), Say (all mod_say_*)

Each page documents: purpose, the module load name and default-load status, its configuration file and parameter table with a real example, the dialplan applications and API commands it registers, the channel variables it reads/sets, and any custom events.

Supporting changes

• channel-variables.mdx — new "Module Reference Variables" index mapping the 125 module-introduced channel variables back to their Part 9 pages (core variables the modules merely read are not duplicated).
• module-loading.mdx — the Optional Modules section now cross-references Part 9.
• appendix-vanilla-config-map.mdx — 27 optional-module config rows now link to their Part 9 page; fixed voicemail_ivr.conf.xml (was mis-attributed to mod_voicemail / Chapter 19).

Validation

npm run build passes cleanly — all 56 pages, the catalog index, and every new internal link compile with no MDX errors or broken links.

🤖 Generated with Claude Code