feat: simplify Discover view into socket cards & backend upgrades

backend/services/system.py

@@ -8,6 +8,7 @@ der Box, daher sysfs). Verschachtelte Struktur wie v1 (cpu.percent, ram.used Byt
 
 import glob
 import os
+import subprocess
 
 import psutil
 
@@ -65,6 +66,111 @@ def _temps() -> dict | None:
     return out or None
 
 
+def get_git_info(path: str) -> dict | None:
+    expanded = os.path.expanduser(path)
+    if not os.path.isdir(expanded) or not os.path.exists(os.path.join(expanded, ".git")):
+        return None
+    try:
+        res = subprocess.run(
+            ["git", "log", "-1", "--format=%h|%cd|%s", "--date=short"],
+            cwd=expanded, capture_output=True, text=True, timeout=3
+        )
+        if res.returncode != 0:
+            return None
+        parts = res.stdout.strip().split("|", 2)
+        h = parts[0]
+        d = parts[1]
+        s = parts[2] if len(parts) > 2 else ""
+        
+        branch_res = subprocess.run(
+            ["git", "rev-parse", "--abbrev-ref", "HEAD"],
+            cwd=expanded, capture_output=True, text=True, timeout=2
+        )
+        branch = branch_res.stdout.strip() if branch_res.returncode == 0 else "unknown"
+
+        status_res = subprocess.run(
+            ["git", "status", "--porcelain"],
+            cwd=expanded, capture_output=True, text=True, timeout=2
+        )
+        dirty = bool(status_res.stdout.strip()) if status_res.returncode == 0 else False
+
+        return {
+            "hash": h,
+            "date": d,
+            "subject": s,
+            "branch": branch,
+            "dirty": dirty,
+            "path": expanded
+        }
+    except Exception:
+        return None
+
+
+def find_hermes_agent_git() -> dict | None:
+    env_path = os.environ.get("MC_HERMES_AGENT_PATH")
+    if env_path:
+        info = get_git_info(env_path)
+        if info:
+            return info
+
+    candidates = [
+        "~/hermes-agent",
+        "~/.hermes/hermes-agent",
+        "~/hermes-webui/hermes-agent",
+        "~/.hermes"
+    ]
+    for c in candidates:
+        info = get_git_info(c)
+        if info:
+            return info
+    return None
+
+
+def get_engine_version() -> dict:
+    engine_path = os.environ.get("MC_ENGINE_PATH", "/opt/llamacpp")
+    git_info = get_git_info(engine_path)
+    if git_info:
+        return {**git_info, "type": "git"}
+    
+    try:
+        binary = os.path.join(engine_path, "llama-server")
+        if not os.path.exists(binary):
+            binary = os.path.join(engine_path, "bin", "llama-server")
+        if not os.path.exists(binary):
+            binary = "llama-server"
+        
+        res = subprocess.run([binary, "--version"], capture_output=True, text=True, timeout=2)
+        if res.returncode == 0:
+            lines = res.stdout.strip().splitlines()
+            ver = lines[0] if lines else "unknown"
+            return {"version_text": ver, "type": "binary"}
+    except Exception:
+        pass
+    return {"type": "unknown"}
+
+
+_VERSION_CACHE = {"ts": 0.0, "data": {}}
+
+
+def check_versions_cached() -> dict:
+    import time
+    now = time.time()
+    if now - _VERSION_CACHE["ts"] < 30.0:
+        return _VERSION_CACHE["data"]
+    
+    mc2_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
+    
+    data = {
+        "mc2": get_git_info(mc2_path),
+        "engine": get_engine_version(),
+        "hermes_ui": get_git_info("~/hermes-webui"),
+        "hermes_agent": find_hermes_agent_git()
+    }
+    _VERSION_CACHE["ts"] = now
+    _VERSION_CACHE["data"] = data
+    return data
+
+
 def system_status() -> dict:
     vm = psutil.virtual_memory()
     try:
@@ -78,4 +184,5 @@ def system_status() -> dict:
         "gpu": _gpu_sysfs(),
         "temp": _temps(),
         "disk": disk,
+        "versions": check_versions_cached(),
     }