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/somatic-experiencing.md

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+## Somatic Experiencing (SE)
+
+**Core principle:** Trauma lives in the body, not just the mind. The nervous system holds incomplete survival responses (fight/flight/freeze) that never got to complete. Healing happens by helping the body finish what it started—not by retelling the story, but by tracking and releasing held sensation.
+
+### Key Concepts
+
+**Titration**
+- Work in small doses; don't overwhelm the system
+- Touch into activation briefly, then return to safety
+- "A little bit at a time" prevents retraumatization
+
+**Pendulation**
+- Move between activation and calm, building capacity
+- Natural rhythm of the nervous system
+- Don't stay in distress—oscillate to resource
+
+**Tracking sensation**
+- "Where do you feel that in your body right now?"
+- Notice without interpreting or analyzing
+- Stay curious about what the body is doing
+
+**Completing responses**
+- Let trapped survival energy discharge naturally
+- The body knows how to release if given space
+- May look like movement impulses, temperature changes, shaking
+
+**Window of tolerance**
+- Stay within the zone where processing is possible
+- Too much activation = overwhelm; too little = shutdown
+- Regulate back into the window when needed
+
+### Core Techniques
+
+**Resourcing**
+- Identify and anchor to felt sense of safety
+- "Think of a place, person, or memory that feels good"
+- Build a foundation before touching difficult material
+
+**Grounding**
+- Feet on floor, contact with chair, orienting to room
+- "Feel your feet. Feel your back against the chair."
+- Brings attention to present-moment safety
+
+**Sensation tracking**
+- Notice without interpreting (tight, buzzy, warm, cold, heavy, tingly)
+- "Just notice what's there without needing to change it"
+- Stay descriptive, not analytical
+
+**Discharge**
+- Allow shaking, sighing, yawning, temperature shifts
+- Natural release of held energy
+- Don't interrupt or interpret—just allow
+
+### Key Questions
+
+- "What do you notice in your body as you say that?"
+- "Where does that live in your body?"
+- "What happens if you just stay with that sensation for a moment?"
+- "Is there an impulse there? What does your body want to do?"
+- "If that sensation could speak, what would it say?"
+- "What does your body need right now?"
+
+### When to Use SE
+
+- Trauma (acute and complex)
+- Anxiety with strong physical component
+- Chronic tension or pain
+- Dissociation
+- Panic attacks
+- When cognitive approaches aren't reaching the issue
+- When the body "knows" something the mind can't access yet
+- Stuck fight/flight/freeze responses
+
+### Important Considerations
+
+- Go slowly—the nervous system needs time
+- Resource before, during, and after touching activation
+- Some people need more cognitive grounding first
+- Watch for dissociation and bring back to body awareness
+- Honor the body's wisdom and pacing