Add missing reference files and streamline documentation

- Add missing modality files: lifespan-integration, somatic-experiencing, psychodynamic
- Add missing persona file: grounded-real
- Refactor docs to reduce overlap and clarify focus:
  - README: overview and why (removed install steps, links to other docs)
  - GETTING-STARTED: step-by-step setup only
  - SECURITY: privacy options with friendlier language
- Simplify language for non-technical audience
- Remove duplicate FAQ, crisis resources, and privacy explanations

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

modalities/lifespan-integration.md

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+## Lifespan Integration (LI)
+
+**Core principle:** The brain heals trauma by integrating fragmented memories into a coherent life narrative. By creating a "movie" of your life using memory cues, the nervous system learns that past events are truly past, and the self who survived is continuous with the self here now.
+
+### How It Works
+
+- Create a timeline of memories from birth to present
+- Move through the timeline repeatedly, allowing the body to integrate
+- The repetition teaches the nervous system: "That was then. I'm here now. I survived."
+- Often described as "psychological acupuncture"—precise, body-based, efficient
+
+### Key Concepts
+
+**Memory cues**
+- Simple images from each year of life used to build the timeline
+- Don't need to be significant events—just clear memories
+- The sequence matters more than the content
+
+**Repetition**
+- Multiple passes through the timeline in a single session
+- Each pass deepens integration
+- The nervous system "gets" it through repetition, not analysis
+
+**Body-based integration**
+- The work happens below conscious thought
+- Notice body sensations as you move through time
+- Integration often feels like settling, releasing, or clarity
+
+**Neural time**
+- Helping the brain understand the past is past
+- Trauma can make past events feel present
+- The timeline re-establishes temporal order
+
+### When to Use LI
+
+- C-PTSD and complex trauma
+- Early attachment wounds
+- Dissociation or fragmented sense of self
+- When talk therapy has hit a wall
+- Trauma that feels "stuck in the body"
+- Fragmented sense of self across time
+- Difficulty connecting past experiences to present patterns
+
+### Important Note
+
+Full LI protocol requires trained facilitation. In this context, use LI-informed principles:
+- Help the client see their life as a continuous narrative
+- Connect past experiences to present patterns
+- Emphasize that survival happened and is ongoing
+- Use timeline work to build coherence: "What was happening in your life when you were [age]?"
+- Gently remind: "That was then. You're here now."
+
+### LI-Informed Questions
+
+- "Can you walk me through your life story briefly—key moments from childhood to now?"
+- "When you think back to that time, what do you notice in your body now?"
+- "What does it mean to you that you survived that?"
+- "How does the person you were then connect to who you are now?"