update .env.example with forge tokens and distributed mode

.env.example

@@ -1,58 +1,81 @@
 # connectd environment variables
 # copy to .env and fill in your values
 
-# === REQUIRED FOR LLM DRAFTING ===
+# === REQUIRED ===
 GROQ_API_KEY=
-GROQ_MODEL=llama-3.1-70b-versatile
+GROQ_MODEL=llama-3.3-70b-versatile
 
-# === DISCOVERY SOURCES ===
-# github (optional - works without token but rate limited)
+# === DISTRIBUTED MODE (optional) ===
+# for coordinating multiple connectd instances
+CONNECTD_CENTRAL_API=
+CONNECTD_API_KEY=
+CONNECTD_INSTANCE_ID=
+CONNECTD_INSTANCE_IP=
+
+# === DISCOVERY: GITHUB ===
+# works without token but heavily rate limited
 GITHUB_TOKEN=
 
-# mastodon (for DM delivery)
+# === DISCOVERY: FEDIVERSE ===
 MASTODON_TOKEN=
-MASTODON_INSTANCE=mastodon.social
+MASTODON_INSTANCE=
 
-# bluesky (for DM delivery)
-BLUESKY_HANDLE=
-BLUESKY_APP_PASSWORD=
-
-# matrix (for DM delivery)
-MATRIX_HOMESERVER=
-MATRIX_USER_ID=
-MATRIX_ACCESS_TOKEN=
-
-# discord (for discovery + DM delivery)
-DISCORD_BOT_TOKEN=
-DISCORD_TARGET_SERVERS=  # comma separated server IDs
-
-# lemmy (for authenticated access to your instance)
 LEMMY_INSTANCE=
 LEMMY_USERNAME=
 LEMMY_PASSWORD=
 
-# === EMAIL DELIVERY ===
+# === DISCOVERY: OTHER ===
+DISCORD_BOT_TOKEN=
+DISCORD_TARGET_SERVERS=
+
+# === DELIVERY: EMAIL ===
 SMTP_HOST=
 SMTP_PORT=465
 SMTP_USER=
 SMTP_PASS=
-FROM_EMAIL=connectd <connectd@yourdomain.com>
+FROM_EMAIL=
+
+# === DELIVERY: SOCIAL ===
+# mastodon - reuses discovery token above
+# MASTODON_TOKEN=
+# MASTODON_INSTANCE=
+
+BLUESKY_HANDLE=
+BLUESKY_APP_PASSWORD=
+
+MATRIX_HOMESERVER=
+MATRIX_USER_ID=
+MATRIX_ACCESS_TOKEN=
+
+# === DELIVERY: FORGE ISSUES ===
+# for creating issues on self-hosted git forges
+# highest signal outreach - these people actually selfhost
+
+# codeberg (largest public gitea instance)
+CODEBERG_TOKEN=
+
+# gitea/forgejo instances - format: GITEA_TOKEN_<host_with_underscores>=token
+# examples:
+# GITEA_TOKEN_git_example_com=your-token
+# GITEA_TOKEN_192_168_1_8_3000=your-token
+
+# gitlab CE instances - format: GITLAB_TOKEN_<host_with_underscores>=token
+# examples:
+# GITLAB_TOKEN_gitlab_example_com=your-token
 
 # === HOST USER CONFIG ===
-# the person running connectd - gets priority matching
-# set HOST_USER to your github username and connectd will auto-discover your info
-# other vars override/supplement discovered values
+# you - gets priority matching and appears in intros
 HOST_USER=
 HOST_NAME=
 HOST_EMAIL=
-HOST_GITHUB=                # defaults to HOST_USER
-HOST_MASTODON=              # format: @user@instance
+HOST_GITHUB=
+HOST_MASTODON=
 HOST_REDDIT=
-HOST_LEMMY=                 # format: @user@instance
+HOST_LEMMY=
 HOST_LOBSTERS=
-HOST_MATRIX=                # format: @user:server
-HOST_DISCORD=               # user id
-HOST_BLUESKY=               # format: handle.bsky.social
+HOST_MATRIX=
+HOST_DISCORD=
+HOST_BLUESKY=
 HOST_LOCATION=
-HOST_INTERESTS=             # comma separated: intentional-community,cooperative,solarpunk
-HOST_LOOKING_FOR=           # what you're looking for in matches
+HOST_INTERESTS=
+HOST_LOOKING_FOR=