Add subreddit tone profiles for message style guidance

Introduces a tone-profile system that lets the processor adapt outgoing
message style per-subreddit (and per-flair) instead of using one tone
for everything. Profiles act as a "tone mic" layered after the base
prompt and strategy override, so they shape voice without redefining
the whole message.

- src/config/tone-profiles.ts defines the catalog (default, dominant,
  submissive, playful, direct, ...) and a resolveTone() helper that
  falls back to the default profile for unknown keys.
- config.yaml maps subreddits to tone keys; the schema in
  src/config/index.ts validates it.
- src/services/processor.ts threads the resolved tone into the prompt
  build, picking based on subreddit and optional link flair.
- src/reddit/api.ts adds link_flair_text to RedditPost so the
  processor can use it for tone selection.
- src/ai/openrouter.ts accepts and forwards the tone-shaped prompt.
- public/index.html surfaces the active tone in the dashboard.
- Tests cover the catalog, config validation, and processor integration.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tests/config.test.ts

@@ -41,6 +41,43 @@ describe('ConfigSchema', () => {
       }
     });
 
+    it('applies default tone to subreddits', () => {
+      const result = ConfigSchema.safeParse(minimalConfig({ reddit: { subreddits: ['test'] } }));
+      expect(result.success).toBe(true);
+      if (result.success) {
+        expect(result.data.reddit.subreddits[0].tone).toBe('default');
+      }
+    });
+
+    it('accepts valid tone values', () => {
+      for (const tone of ['default', 'dominant', 'submissive', 'playful', 'direct', 'gentle', 'kink-friendly', 'teasing']) {
+        const result = ConfigSchema.safeParse({
+          reddit: { subreddits: [{ name: 'test', tone }] },
+          openrouter: { apiKey: 'key', imageAnalysisPrompt: 'test', messageGenerationPrompt: 'test' },
+          rateLimit: {}, browser: {}, database: {}, media: {}, strategies: {}, web: {},
+        });
+        expect(result.success).toBe(true);
+      }
+    });
+
+    it('rejects invalid tone', () => {
+      const result = ConfigSchema.safeParse({
+        reddit: { subreddits: [{ name: 'test', tone: 'bananas' }] },
+        openrouter: { apiKey: 'key', imageAnalysisPrompt: 'test', messageGenerationPrompt: 'test' },
+        rateLimit: {}, browser: {}, database: {}, media: {}, strategies: {}, web: {},
+      });
+      expect(result.success).toBe(false);
+    });
+
+    it('accepts scripted field', () => {
+      const result = ConfigSchema.safeParse({
+        reddit: { subreddits: [{ name: 'test', scripted: 'Hello {author}' }] },
+        openrouter: { apiKey: 'key', imageAnalysisPrompt: 'test', messageGenerationPrompt: 'test' },
+        rateLimit: {}, browser: {}, database: {}, media: {}, strategies: {}, web: {},
+      });
+      expect(result.success).toBe(true);
+    });
+
     it('accepts valid targetGenders', () => {
       const result = ConfigSchema.safeParse(minimalConfig({
         reddit: { subreddits: ['test'], targetGenders: ['male', 'female', 'other', 'unknown'] },
@@ -306,7 +343,7 @@ openrouter:
 `);
 
 const config = loadConfig();
-    expect(config.reddit.subreddits).toEqual([{ name: 'test-sub', type: 'image' }]);
+    expect(config.reddit.subreddits).toEqual([{ name: 'test-sub', type: 'image', tone: 'default' }]);
     expect(config.reddit.pollIntervalMs).toBe(5000);
     expect(config.openrouter.apiKey).toBe('yaml-key');
   });