feat: Add Opencode IDE with AI agents, Beads issue tracking, and STT/PTT

support
- Integrate Opencode terminal IDE with MCP integrations (Ref, Exa,
  Outline)
- Add Beads AI-native issue tracking system (.beads/ + AGENTS.md)
- Implement STT/PTT (speech-to-text push-to-talk) with
  whisper-cpp-vulkan
- Add coding feature module with dev tools (beads, alejandra, bun,
  devpod, nixd)
- Create AZPILOGISTIKTEST host configuration
- Refactor Hyprland windowrules to new match: syntax
- Upgrade nixpkgs/home-manager from 25.05 to 25.11
- Update Ollama to use Vulkan acceleration
- Add lmstudio, rofi-project-opener, and various app updates
- Add outline-key secret and mem0 service configuration

chore: Add Opencode IDE, Beads issue tracking, STT/PTT, and nixpkgs
25.11 upgrade

secrets.nix

@@ -1,13 +1,14 @@
 let
   #SYSTEMS
   AZ-CLD-1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIItSijmU5YwcJcoshtmYxpxBaVA4TPaCMk23ws7KDkAH";
+  AZLT124-L = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIg/nFOPx763xIbepPsdYRE49R7HwvikXhLF/iPgH1Jh";
 
   #USERS
   sascha.koenig = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEZbg/Z9mnflXuLahGY8WOSBMqbgeqVIkIwRkquys1Ml";
   jannik.mueller = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPvZazSuIoWoRWhkAqQDMLeurxVUyy1MTllp1wfw1tzq";
 
   users = [sascha.koenig];
-  systems = [AZ-CLD-1];
+  systems = [AZ-CLD-1 AZLT124-L];
 in {
   "secrets/server.crt.age".publicKeys = systems ++ users;
   "secrets/server.key.age".publicKeys = systems ++ users;
@@ -31,4 +32,5 @@ in {
   "secrets/zammad-secret.age".publicKeys = systems ++ users;
   "secrets/zammad-hr-env.age".publicKeys = systems ++ users;
   "secrets/zammad-hr-env-prod.age".publicKeys = systems ++ users;
+  "secrets/outline-key.age".publicKeys = systems ++ users;
 }