feat(infra): smart build memory check and baseline monitoring script

build-app.sh now checks available RAM before builds and only stops
monitoring containers when free memory is below 3 GB threshold.
New memory-baseline.sh script measures per-container and per-category
RAM usage for capacity planning.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker/matrix/config/appservices/generate-as.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Generate random token
+gen_token() {
+    openssl rand -hex 32
+}
+
+# Bot configurations: name, sender_localpart
+declare -a BOTS=(
+    "mana:mana-bot"
+    "ollama:ollama-bot"
+    "stats:stats-bot"
+    "projectdoc:projectdoc-bot"
+    "todo:todo-bot"
+    "calendar:calendar-bot"
+    "nutriphi:nutriphi-bot"
+    "zitare:zitare-bot"
+    "clock:clock-bot"
+    "tts:tts-bot"
+)
+
+echo "# Generated AS tokens for .env file:" > as-tokens.env
+echo "" >> as-tokens.env
+
+for bot_config in "${BOTS[@]}"; do
+    IFS=":" read -r name sender <<< "$bot_config"
+
+    as_token=$(gen_token)
+    hs_token=$(gen_token)
+
+    cat > "${name}-bot.yaml" << EOF
+id: ${name}-bot
+hs_token: ${hs_token}
+as_token: ${as_token}
+url: null
+sender_localpart: ${sender}
+namespaces:
+  users:
+    - exclusive: true
+      regex: '@${sender}:mana\.how'
+  rooms: []
+  aliases: []
+rate_limited: false
+EOF
+
+    # Convert name to uppercase for env var
+    env_name=$(echo "${name}" | tr '[:lower:]' '[:upper:]' | tr '-' '_')
+    echo "MATRIX_${env_name}_BOT_AS_TOKEN=${as_token}" >> as-tokens.env
+
+    echo "Created ${name}-bot.yaml with AS token"
+done
+
+echo ""
+echo "Done! Add the tokens from as-tokens.env to your .env file"