Content Calendar Spreadsheet Format

Generate a content calendar in spreadsheet-ready format:

Month: {{month}}
Posting frequency: {{frequency}}
Content pillars: {{pillars}}

Output as CSV-ready format:

```
Date,Day,Content Type,Title,Pillar,Status,Platform,Hook,Thumbnail Notes,CTA,Promotion Plan
[Date],[Day],[Type],[Title],[Pillar],[Status],[Platform],[Hook idea],[Thumb notes],[CTA],[Promo]
[Date],[Day],[Type],[Title],[Pillar],[Status],[Platform],[Hook idea],[Thumb notes],[CTA],[Promo]
...

--- MONTH SUMMARY ---
Total posts: [Number]
By pillar:
- [Pillar 1]: [Count]
- [Pillar 2]: [Count]
- [Pillar 3]: [Count]

By type:
- Long-form: [Count]
- Shorts: [Count]
- Social: [Count]

--- KEY DATES ---
[Date]: [Special occasion/opportunity]
[Date]: [Special occasion/opportunity]
```