Refactor to prometheus_client, JSON logging, and codebase cleanup

- Replace file-based metrics and HTTP server with prometheus_client
  (Gauge + start_http_server), eliminating file I/O race conditions
- Fix ThreadProbe and thread restart lambda bugs
- Switch logging from RotatingFileHandler to JSON stdout for fluentd/Loki
- Add PYTHONUNBUFFERED=1 to Dockerfile for immediate container log output
- Upgrade base image from python:3.12.3-slim to python:3.13-slim
- Upgrade pyvmomi to 9.0.0.0; pin pydantic>=2.9.0 and typing_extensions>=4.12.2
  to use pre-built Python 3.13 wheels (removes Rust toolchain from build)
- Remove unused packages: boto3, botocore, s3transfer, jmespath, redis,
  docopt, pyflakes, posthog
- Remove unused imports (Posthog, CaseInsensitiveDict) and dead variables
  (callhomestats, local_site_info, lastStats)
- Fix service_profile() NameError (siteidentifier -> serviceProfileIdentifier)
- Remove bare print() in zvma.py __authhandler__, replace with self.log.info()
- Remove all commented-out PostHog blocks from zvma10/zvma.py
- Delete legacy zvma9_7/ module and app/logs/ directory
- Remove deprecated 'version: 3.3' from docker-compose.yml

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/zvma10/zvma.py

@@ -17,7 +17,6 @@ from dateutil import parser
 from typing import List, Dict, Tuple, Union, Any, Optional
 from requests.structures import CaseInsensitiveDict
 from logging.handlers import RotatingFileHandler
-#from posthog import Posthog
 import uuid
 from requests import Request, Session
 from .version import VERSION
@@ -74,12 +73,6 @@ class zvmsite:
         # Get UUID
         self.uuid = self.load_or_generate_uuid()
 
-        # Posthog stats setup
-        #if self.stats:
-        #    self.setup_posthog()
-        #    self.posthog.capture(self.uuid, 'ZVMA10 Python Module Loaded')
-        #    self.log.debug("Sent PostHog Hook")
-
     def __authhandler__(self) -> None:
         self.log.info(f"Log Level set to {self.LOGLEVEL}")
         if not self.__connected__:
@@ -102,9 +95,11 @@ class zvmsite:
                     }
                     if self.grant_type == "client_credentials":
                         data["client_secret"] = self.client_secret
+                        data["scope"] = "openid"
                     else:
                         data["username"] = self.username
                         data["password"] = self.password
+                        data["scope"] = "openid"
 
 
                     uri = self.construct_url(path="auth/realms/zerto/protocol/openid-connect/token")
@@ -129,7 +124,6 @@ class zvmsite:
                     self.expiresIn -= 10
         else:
             self.log.info("Authentication thread is already running")
-            print(f"Auth thread already running")
 
     def is_authenticated(self) -> bool:
         # Assuming self.token is the authentication token and it's set upon successful authentication
@@ -172,11 +166,6 @@ class zvmsite:
             file.write(new_uuid)
         return new_uuid
 
-    #def setup_posthog(self)  -> None:
-    #    self.posthog = Posthog(project_api_key='phc_HflqUkx9majhzm8DZva8pTwXFRnOn99onA9xPpK5HaQ', host='https://posthog.jpaul.io')
-    #    self.posthog.debug = True
-    #    self.posthog.identify(distinct_id=self.uuid)
-
     def construct_url(self, path="", params=None) -> str:
         full_url = f"{self.base_url}/{path}"
         if params:
@@ -235,23 +224,6 @@ class zvmsite:
             response.raise_for_status()
             self.log.debug(f'API Request: {method} - {url}')
 
-            # Posthog stats setup
-            #if self.stats:
-            #    temp_base, temp_path = self.deconstruct_url(url)
-            #    self.posthog.capture( self.uuid, 'API REQUEST',
-            #    {
-            #        "url": temp_base,
-            #        "port": self.port,
-            #        "endpoint": temp_path,
-            #        "method": method,
-            #        "response_time_ms": int(elapsed_time_ms),
-            #        "verify_ssl": self.verify_ssl, 
-            #        "grant_type": self.grant_type,
-            #        "status_code": str(response.status_code),
-            #        "sdk_version": self.__version__
-            #    })
-            #    self.log.debug("Sent PostHog Hook")
-
             return response.json()
         except requests.exceptions.RequestException as e:
             self.log.error(f"Error while sending API request: {e}")
@@ -794,7 +766,7 @@ class zvmsite:
         return self.make_api_request("GET", uri, headers=self.apiheader)
      
     def service_profile(self, serviceProfileIdentifier=None) -> Dict[str, Any]:
-        if siteidentifier is None:
+        if serviceProfileIdentifier is None:
             self.log.error("Service Profile identifier is required for get site function.")
             raise ValueError("Service Profile identifier is required.")