chore: remove legacy nix profile resources

resources/nix/profile-lib.nix

@@ -1,67 +0,0 @@
-# Insomnia Nix profile helpers.
-#
-# A profile file can use:
-#
-#   let insomnia = import ./path/to/profile-lib.nix {};
-#   in insomnia.mkProfile {
-#     name = "coder";
-#     manifest = insomnia.mkManifest { ... };
-#   }
-#
-# The output is consumed by `insomnia-pod --profile <path>` via
-# `nix eval --json --file <path>`.
-
-{ }:
-
-let
-  profileFormat = "insomnia.nix-profile.v1";
-
-  optional = name: value:
-    if value == null then {} else { ${name} = value; };
-
-  secretRef = ref: {
-    kind = "secret_ref";
-    inherit ref;
-  };
-
-  mkManifest = manifest: manifest;
-
-  mkProfile =
-    { name ? null
-    , description ? null
-    , manifest ? null
-    , config ? null
-    , ...
-    }@args:
-    let
-      resolvedManifest =
-        if manifest != null then manifest
-        else if config != null then config
-        else removeAttrs args [ "name" "description" "manifest" "config" ];
-    in
-    {
-      profile = ({ format = profileFormat; }
-        // optional "name" name
-        // optional "description" description);
-      manifest = resolvedManifest;
-    };
-
-  semanticPresets = {
-    # Skeleton for users to extend in their own Nix. Rust does not attach any
-    # hidden semantic meaning to these helpers; they only generate manifest JSON.
-    codingAssistant = { modelId ? "claude-sonnet-4-20250514", authRef ? null }:
-      {
-        model = {
-          scheme = "anthropic";
-          model_id = modelId;
-        } // (if authRef == null then {} else { auth = secretRef authRef; });
-      };
-  };
-
-in
-{
-  inherit profileFormat mkProfile mkManifest semanticPresets;
-  secrets = {
-    ref = secretRef;
-  };
-}

resources/nix/profiles/default.nix

@@ -1,40 +0,0 @@
-let
-  insomnia = import ../profile-lib.nix {};
-in
-insomnia.mkProfile {
-  name = "default";
-  description = "Bundled default Insomnia coding profile";
-  manifest = insomnia.mkManifest {
-    pod.name = "insomnia";
-
-    scope.allow = [
-      { target = "."; permission = "write"; recursive = true; }
-    ];
-
-    session.record_event_trace = true;
-
-    worker.reasoning = "high";
-
-    model.ref = "codex-oauth/gpt-5.5";
-
-    compaction = {
-      threshold = 200000;
-      request_threshold = 240000;
-      worker_context_max_tokens = 100000;
-    };
-
-    memory = {
-      extract_threshold = 50000;
-      consolidation_threshold_files = 5;
-      consolidation_threshold_bytes = 50000;
-    };
-
-    web = {
-      enabled = true;
-      search = {
-        provider = "brave";
-        api_key_env = "BRAVE_SEARCH_API_KEY";
-      };
-    };
-  };
-}