[ci skip] Move Terraform modules into stack directories

Move all 88 service modules (66 individual + 22 platform) from
modules/kubernetes/<service>/ into their corresponding stack directories:

- Service stacks: stacks/<service>/module/
- Platform stack: stacks/platform/modules/<service>/

This collocates module source code with its Terragrunt definition.
Only shared utility modules remain in modules/kubernetes/:
ingress_factory, setup_tls_secret, dockerhub_secret, oauth-proxy.

All cross-references to shared modules updated to use correct
relative paths. Verified with terragrunt run --all -- plan:
0 adds, 0 destroys across all 68 stacks.

stacks/platform/modules/monitoring/server-power-cycle/main.py

@@ -0,0 +1,51 @@
+import asyncio
+import logging
+import os
+import signal
+import sys
+import time
+
+import aiohttp
+
+iDRAC_HOST = 'idrac'
+iDRAC_USER_ENV_VAR = 'idrac_user'
+iDRAC_PASSWORD_ENV_VAR = 'idrac_password'
+SHOULD_RUN = True
+
+
+def signal_handler(sig, frame):
+    logging.warning(f'signal {sig} received. shutting down gracefully...')
+    global SHOULD_RUN
+    SHOULD_RUN = False
+    time.sleep(60)
+    sys.exit(0)
+
+
+async def main() -> None:
+    # define signal handlers
+    signal.signal(signal.SIGINT, signal_handler)
+
+    user = os.environ.get(iDRAC_USER_ENV_VAR)
+    if user is None:
+        logging.critical('missing environment variable for idrac user'
+                         f' please set  {iDRAC_USER_ENV_VAR}')
+        return
+
+    password = os.environ.get(iDRAC_PASSWORD_ENV_VAR)
+    if password is None:
+        logging.critical('missing environment variable for idrac password'
+                         f' please set  {iDRAC_PASSWORD_ENV_VAR}')
+        return
+
+    logging.info('service initiated with credentials')
+    return await monitor(user, password)
+
+
+async def monitor(user: str, password: str) -> None:
+    while SHOULD_RUN:
+        pass
+
+
+if __name__ == '__main__':
+    # abandoned bc server cannot start itself when it's off :/
+    asyncio.run(main())