feat: start logging token usage and subscriptions (#2)

### Explanation

_No response_

### Issue

_No response_

### Attestations

- [x] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [x] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [x] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [x] I have pinned the dependencies to a specific patch version.

### Style

- [x] I have run the linter and resolved any errors.
- [x] My pull request uses an appropriate title, matching the conventional commit standards.
- [x] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [x] All new and existing tests pass locally with my changes.
- [x] Code coverage remains at or above the configured threshold.

### Documentation

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### Versioning

Minor - My pull request introduces a new non-breaking feature.

Reviewed-on: nhcarrigan/cordelia-taryne#2
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/modules/alt.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 import type { ImageBlockParam } from "@anthropic-ai/sdk/resources/index.js";
 
@@ -109,4 +110,7 @@ export const alt = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "alt-text");
 };

src/modules/evaluate.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 
 /**
@@ -40,4 +41,7 @@ export const evaluate = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "evaluate");
 };

src/modules/mood.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 
 /**
@@ -41,4 +42,7 @@ export const mood = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "mood");
 };

src/modules/proofread.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 
 /**
@@ -41,4 +42,7 @@ export const proofread = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "proofread");
 };

src/modules/query.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 
 /**
@@ -41,4 +42,7 @@ export const query = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "query");
 };

src/modules/summarise.ts

@@ -6,6 +6,7 @@
 import { MessageFlags, type ChatInputCommandInteraction } from "discord.js";
 import { personality } from "../config/personality.js";
 import { ai } from "../utils/ai.js";
+import { calculateCost } from "../utils/calculateCost.js";
 import { isSubscribed } from "../utils/isSubscribed.js";
 
 /**
@@ -41,4 +42,7 @@ export const summarise = async(
     response?.text
       ?? "I'm sorry, I don't have an answer for that. Please try again later.",
   );
+
+  const { usage } = messages;
+  await calculateCost(usage, interaction.user.username, "summarise");
 };