Revert "feat: add --llm mode for LLM-friendly stdout filtering"

This reverts commit ea6f07914e.

docs/USAGE.md

@@ -16,7 +16,6 @@ derp --config /path/to/derp.toml --verbose
 |------|-------------|
 | `-c, --config PATH` | Config file path |
 | `-v, --verbose` | Debug logging |
-| `--llm` | LLM mode: addressed messages to stdout, rest to info.log |
 | `--cprofile [PATH]` | Enable cProfile, dump to PATH [derp.prof] |
 | `--tracemalloc [N]` | Enable tracemalloc, capture N frames deep [10] |
 | `-V, --version` | Print version |
@@ -52,7 +51,6 @@ plugins_dir = "plugins"       # Plugin directory path
 rate_limit = 2.0              # Max messages per second (default: 2.0)
 rate_burst = 5                # Burst capacity (default: 5)
 paste_threshold = 4           # Max lines before overflow to FlaskPaste (default: 4)
-owner = []                    # Owner hostmask patterns (fnmatch), grants admin + LLM access
 admins = []                   # Hostmask patterns (fnmatch), IRCOPs auto-detected
 timezone = "UTC"              # Timezone for calendar reminders (IANA tz name)
 
@@ -218,20 +216,14 @@ Default format is `"text"` (human-readable, same as before).
 
 ## Admin System
 
-Commands marked as `admin` require elevated permissions. There are two
-privilege levels:
+Commands marked as `admin` require elevated permissions. Admin access is
+granted via:
 
-| Level | Source | Grants |
-|-------|--------|--------|
-| **Owner** | `[bot] owner` hostmask patterns | Admin + LLM mode access |
-| **Admin** | `[bot] admins` patterns, IRC operators | Admin commands only |
-
-Owner is a superset of admin -- owners automatically have admin privileges.
-Only owners can interact with the bot via `--llm` mode.
+1. **IRC operator status** -- detected automatically via `WHO`
+2. **Hostmask patterns** -- configured in `[bot] admins`, fnmatch-style
 
 ```toml
 [bot]
-owner = ["me!~user@my.host"]
 admins = [
     "*!~user@trusted.host",
     "ops!*@*.ops.net",
@@ -376,7 +368,7 @@ The script is cron-friendly (exit 0/1, quiet unless `NO_COLOR` is unset).
 ```
 data/
   GeoLite2-City.mmdb    # MaxMind GeoIP (requires license key)
-  ip2asn-v4.tsv         # iptoasn.com ASN database (no key required)
+  GeoLite2-ASN.mmdb     # MaxMind ASN (requires license key)
   tor-exit-nodes.txt    # Tor exit node IPs
   iprep/                # Firehol/ET blocklist feeds
     firehol_level1.netset
@@ -388,8 +380,7 @@ data/
     ...
 ```
 
-The ASN database is downloaded from iptoasn.com (no account required).
-GeoLite2-City requires a free MaxMind license key -- set
+GeoLite2 databases require a free MaxMind license key. Set
 `MAXMIND_LICENSE_KEY` when running the update script.
 
 ## Plugin Management
@@ -497,39 +488,6 @@ On connection loss, the bot reconnects with exponential backoff and jitter:
 - Jitter: +/- 25% to avoid thundering herd
 - Resets to 5s after a successful connection
 
-## LLM Mode
-
-Run with `--llm` to split output for LLM consumption. All internal logging
-(connection status, plugin loads, unaddressed chatter) goes to `info.log`.
-Stdout receives only messages addressed to the bot and the bot's own replies.
-
-```bash
-derp --llm
-derp --llm --config config/derp.toml
-```
-
-### What goes to stdout
-
-- **DMs**: private messages from an owner
-- **Nick-prefixed**: channel messages from an owner starting with `<botnick>:` or `<botnick>,`
-- **Bot replies**: all messages sent by the bot (PRIVMSG and ACTION)
-- **Status lines**: connection, ping, disconnect, reconnect events
-
-### Output format
-
-```
-19:09 --- connected as derp
-19:09 --- ping
-19:09 #test <alice> derp: what is 1.1.1.1?
-19:09 #test <derp> 1.1.1.1: AS13335 CLOUDFLARENET (US)
-19:09 <bob> hey derp, check this out
-19:09 <derp> I'm just a bot
-19:09 #test * derp [rss/hackernews] New article -- URL
-19:15 --- disconnected: Connection reset
-19:15 --- reconnecting in 5s
-19:15 --- connected as derp
-```
-
 ### `!dork` -- Google Dork Query Builder
 
 Generate Google dork queries for a target domain. Template-based, no HTTP