feat(tools): set up proper CI (#2)

### Explanation

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### Issue

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### Attestations

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

### Dependencies

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

### Style

- [ ] I have run the linter and resolved any errors.
- [ ] My pull request uses an appropriate title, matching the conventional commit standards.
- [ ] 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.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

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

src/lib/stores/character.ts

@@ -2,7 +2,7 @@ import { writable, derived } from "svelte/store";
 import { CHARACTER_STATES, type CharacterState } from "$lib/types/states";
 
 function createCharacterStore() {
-  const { subscribe, set, update } = writable<CharacterState>("idle");
+  const { subscribe, set } = writable<CharacterState>("idle");
 
   let stateTimeout: ReturnType<typeof setTimeout> | null = null;
 

src/lib/stores/claude.ts

@@ -1,9 +1,5 @@
 import { writable, derived } from "svelte/store";
-import type {
-  ConnectionStatus,
-  PermissionRequest,
-  ClaudeStreamMessage,
-} from "$lib/types/messages";
+import type { ConnectionStatus, PermissionRequest } from "$lib/types/messages";
 
 export interface TerminalLine {
   id: string;