v0.22.1: dockerize defaults, harden error handling, fix test discovery

- config.py: defaults to localhost/localhost, AMQP to rabbitmq, secret
  path to /run/secrets, RAG_MAX_VECTORS from env
- rag.py: EMBED_URL default to localhost
- app.py: syslog handler wrapped in try/except
- routers/completions.py: db.close() in try/finally
- db.py: PRAGMA journal_mode = WAL
- amqp.py: subscription append before try for reconnect safety
- tests/conftest.py: add project root to sys.path for test discovery

config.py

@@ -9,9 +9,9 @@ import logging
 
 log = logging.getLogger("caic")
 
-VERSION = "v0.22.0"
+VERSION = "v0.22.1"
 OLLAMA_BASE = os.environ.get("OLLAMA_BASE", "http://localhost:11434")
-LLAMA_SERVER_BASE = os.environ.get("LLAMA_SERVER_BASE", "http://192.168.50.108:8081")
+LLAMA_SERVER_BASE = os.environ.get("LLAMA_SERVER_BASE", "http://localhost:8081")
 SEARXNG_BASE = os.environ.get("CAIC_SEARXNG_BASE", "http://localhost:8888")
 DEFAULT_MODEL = "qwen2.5-7b-instruct"
 COMPLETIONS_API_KEY = os.environ.get("CAIC_COMPLETIONS_API_KEY", "caic-sk-" + os.urandom(24).hex())
@@ -21,7 +21,7 @@ MODEL_CONTEXT_LENGTH = 4096
 AMQP_RECONNECT_DELAY = 5
 AMQP_EXCHANGE_ADMIN = "jc.admin"
 AMQP_EXCHANGE_SYSTEM = "jc.system"
-AMQP_SECRET_PATH = os.environ.get("CAIC_AMQP_SECRET_PATH", "/home/gramps/.caic_amqp_secret")
+AMQP_SECRET_PATH = os.environ.get("CAIC_AMQP_SECRET_PATH", "/run/secrets/caic_amqp_secret")
 
 def get_amqp_url() -> str:
     url = os.environ.get("CAIC_AMQP_URL")
@@ -33,7 +33,7 @@ def get_amqp_url() -> str:
     except (FileNotFoundError, OSError):
         pw = "password"
         log.warning("AMQP secret file not found at %s — using default password", AMQP_SECRET_PATH)
-    return f"amqp://caic:{pw}@localhost:5672/caic"
+    return f"amqp://caic:{pw}@rabbitmq:5672/caic"
 
 # --- Auth ---
 SESSION_TIMEOUT_SECONDS = 3600
@@ -69,13 +69,13 @@ BODY_LIMIT_PROFILE_BYTES = 256 * 1024
 UPLOAD_DIR = os.environ.get("CAIC_UPLOAD_DIR", "/tmp/caic_uploads")
 MAX_UPLOAD_BYTES = 20 * 1024 * 1024
 SUPPORTED_UPLOAD_TYPES = {"text/plain", "text/markdown", "application/pdf", "application/json", "text/x-python", "text/html", "image/png", "image/jpeg", "image/gif", "image/svg+xml", "image/webp"}
-QDRANT_URL = os.environ.get("CAIC_QDRANT_URL", "http://192.168.50.108:6333")
+QDRANT_URL = os.environ.get("CAIC_QDRANT_URL", "http://localhost:6333")
 RAG_COLLECTION = os.environ.get("CAIC_RAG_COLLECTION", "caic_rag")
 UPLOAD_CONTEXT_EXPIRY_HOURS = 1
 BODY_LIMIT_UPLOAD_BYTES = MAX_UPLOAD_BYTES
 
 # --- RAG eviction ---
-RAG_MAX_VECTORS = 50000
+RAG_MAX_VECTORS = int(os.environ.get("CAIC_RAG_MAX_VECTORS", "50000"))
 RAG_EVICTION_HIGH_WATER = 0.80
 RAG_EVICTION_LOW_WATER = 0.20
 RAG_EVICTION_BATCH = 1000