Remove expansion pack references for initial launch

Saved expansion pack content to docs/EXPANSION-PACK-README-CONTENT.md
for easy restoration when the expansion launches.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -76,7 +76,6 @@ During setup, you choose how your AI therapist communicates:
 | **Warm 4o-Style** | Like a good friend who asks insightful questions |
 | **Direct & Challenging** | Will push back, asks probing questions |
 
-Want more options? The [Expansion Pack](#expansion-pack) includes 3 additional styles.
 
 ### Therapeutic Approaches
 
@@ -84,7 +83,6 @@ Your AI therapist uses evidence-based approaches:
 
 - **CBT** — Identify and challenge unhelpful thought patterns
 
-Want more approaches? The [Expansion Pack](#expansion-pack) includes ACT, DBT Skills, Somatic Experiencing, and more.
 
 ### How Sessions Work
 
@@ -121,26 +119,6 @@ No special software needed to view your own notes.
 
 ---
 
-## Expansion Pack
-
-Want more communication styles and therapeutic approaches? **Inner Dialogue: Deeper** adds:
-
-**3 Additional Styles:**
-- Warm & Supportive (validation first, gentle challenges)
-- Coach (action-oriented, accountability)
-- Grounded & Real (down-to-earth, uses humor)
-
-**5 Additional Modalities:**
-- ACT (Acceptance and Commitment Therapy)
-- DBT Skills (emotional regulation, distress tolerance)
-- Lifespan Integration (body-based trauma work)
-- Psychodynamic (understanding patterns from the past)
-- Somatic Experiencing (nervous system regulation)
-
-**[Get Inner Dialogue: Deeper](https://gumroad.com/l/inner-dialogue-deeper)** — Pay what you want (including free).
-
----
-
 ## Safety & Limitations
 
 **This tool is for self-reflection and emotional support. It is not a replacement for professional mental health care.**