refactor(terminal): filter models by coding type

Change opencode and pi model filtering to use 'coding' type instead of
more generic 'text-generation' type. Update llama-swap model configs to
include 'coding' in metadata type list for relevant models (deepseek-coder,
qwen-coder, mistral, codellama, llama3-8b-instruct-q5).

modules/home/programs/terminal/opencode/lib.nix

@@ -14,11 +14,9 @@ in
   toOpencodeModels =
     llamaSwapConfig:
     let
-      textGenModels = filterAttrs
+      textGenModels = filterAttrs (name: model: any (t: t == "coding") (model.metadata.type or [ ])) (
-        (
+        llamaSwapConfig.models or { }
-          name: model: any (t: t == "text-generation") (model.metadata.type or [ ])
+      );
-        )
-        (llamaSwapConfig.models or { });
 
       localModels = mapAttrs
         (

modules/home/programs/terminal/pi/lib.nix

@@ -13,11 +13,9 @@ in
   toPiModels =
     llamaSwapConfig:
     let
-      textGenModels = filterAttrs
+      textGenModels = filterAttrs (name: model: any (t: t == "coding") (model.metadata.type or [ ])) (
-        (
+        llamaSwapConfig.models or { }
-          name: model: any (t: t == "text-generation") (model.metadata.type or [ ])
+      );
-        )
-        (llamaSwapConfig.models or { });
 
       localModels = mapAttrs
         (

modules/nixos/services/llama-swap/config.nix

@@ -29,7 +29,10 @@ in
           -dev CUDA0
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };
@@ -56,7 +59,10 @@ in
           -dev CUDA0
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };
@@ -142,7 +148,10 @@ in
           -fit off
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };
@@ -165,7 +174,10 @@ in
           -fit off
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };
@@ -216,7 +228,10 @@ in
           -fit off
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };
@@ -261,7 +276,10 @@ in
           -fit off
       '';
       metadata = {
-        type = [ "text-generation" ];
+        type = [
+          "text-generation"
+          "coding"
+        ];
       };
       env = [ "GGML_CUDA_ENABLE_UNIFIED_MEMORY=1" ];
     };