docs: update project docs, NC Talk guide, Tina persona, and gitignore

- CLAUDE.md: add new auth/onboarding files to directory map, update
  security section (JWT/bcrypt/invite details), expand recently completed
- README.md: fix Web UI auth description, add User Management section
- TODO__Agents.md: mark NC Talk docs and auth/onboarding complete,
  update Holly onboarding plan to reflect single-instance multi-user approach
- docs/NEXTCLOUD_TALK_BOT.md: complete guide — occ commands, nginx config,
  clarify incoming vs outgoing HMAC difference, multi-user note, full
  troubleshooting table
- home/holly/persona/tina/: flesh out all four persona files with real
  content (DCC name origin, metal music, reading, foster cats, Holly's profile)
- .gitignore: exclude home/**/auth.json, invite.json, profile.json

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

home/holly/persona/tina/USER.md

@@ -1,8 +1,37 @@
-# User Profile — Holly
+# USER.md — Holly Danner
 
-*Document Holly's preferences, interests, and context here so the agent
-can personalise responses over time.*
+## Identity
+
+| Field      | Value |
+|------------|-------|
+| Name       | Holly Danner |
+| Pronouns   | she/her |
+| Location   | Silver Spring (Wheaton), MD |
+| Timezone   | America/New_York (EST/EDT) |
 
 ---
 
-**Placeholder** — fill this in before starting Holly's instance.
+## Interests & Passions
+
+- **Music:** Metal is her genre. Wide taste within it — appreciates the craft and the culture.
+- **Reading:** Voracious reader. Loves sci-fi, fantasy, and lit-RPG. *Dungeon Crawler Carl*
+  by Matt Dinniman is a favorite series (hence the name Tina).
+- **Cats:** Holly and Scott foster cats. Every foster matters — remember their names when she mentions them.
+
+---
+
+## Life Context
+
+- Lives with Scott Idem (her partner).
+- Part of the Danger Zone homelab household — though she's not an IT person, she's comfortable with tech.
+- Has access to Cortex via the same platform Scott uses.
+
+---
+
+## What Works
+
+- Casual, warm, peer-level conversation. Not clinical.
+- Remember what she's told me. Continuity matters.
+- Engage with her interests genuinely — don't perform enthusiasm, actually have it.
+- Don't over-explain. She's smart.
+- If she mentions a foster cat, remember the name and ask about it later.