feat: Registratura thread explorer, AC validity tracker, interactive I/O toggle + Password Vault rework

Registratura improvements:
- Thread Explorer: new 'Fire conversatie' tab with timeline view, search, stats, gap tracking (la noi/la institutie), export to text report
- Interactive I/O toggle: replaced direction dropdown with visual blue/orange button group (Intrat/Iesit with icons)
- Doc type UX: alphabetical sort + immediate selection after adding custom type
- AC Validity Tracker: full Autorizatie de Construire lifecycle workflow (12mo validity, execution phases, extension request, required docs checklist, monthly reminders, abandonment/expiry tracking)

Password Vault rework (renamed to 'Parole Uzuale' v0.3.0):
- New categories: WiFi, Portale Primarii, Avize Online, PIN Semnatura, Software, Hardware (replaced server/database/api)
- Category icons (lucide-react) throughout list and form
- WiFi QR code dialog with connection string copy
- Context-aware form (PIN vs password label, hide email for WiFi/PIN, hide URL for WiFi, hide generator for PIN)
- Dynamic stat cards showing top 3 categories by count
- Removed encryption banner
- Updated i18n, flags, config

SESSION-GUIDE.md

@@ -6,24 +6,25 @@
 
 ## Repository URLs
 
-| Access | Git Clone URL | Web UI |
-|---|---|---|
-| **Internal (office)** | `http://10.10.10.166:3002/gitadmin/ArchiTools.git` | http://10.10.10.166:3002/gitadmin/ArchiTools |
-| **External (internet)** | `https://git.beletage.ro/gitadmin/ArchiTools.git` | https://git.beletage.ro/gitadmin/ArchiTools |
+| Access                  | Git Clone URL                                      | Web UI                                       |
+| ----------------------- | -------------------------------------------------- | -------------------------------------------- |
+| **Internal (office)**   | `http://10.10.10.166:3002/gitadmin/ArchiTools.git` | http://10.10.10.166:3002/gitadmin/ArchiTools |
+| **External (internet)** | `https://git.beletage.ro/gitadmin/ArchiTools.git`  | https://git.beletage.ro/gitadmin/ArchiTools  |
 
 ### Raw File URLs (for AI tools that can fetch URLs)
 
 Replace `{GITEA}` with whichever base works for you:
+
 - Internal: `http://10.10.10.166:3002`
 - External: `https://git.beletage.ro`
 
-| File | URL |
-|---|---|
-| CLAUDE.md | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/CLAUDE.md` |
-| ROADMAP.md | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/ROADMAP.md` |
-| SESSION-LOG.md | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/SESSION-LOG.md` |
+| File             | URL                                                            |
+| ---------------- | -------------------------------------------------------------- |
+| CLAUDE.md        | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/CLAUDE.md`        |
+| ROADMAP.md       | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/ROADMAP.md`       |
+| SESSION-LOG.md   | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/SESSION-LOG.md`   |
 | SESSION-GUIDE.md | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/SESSION-GUIDE.md` |
-| QA-CHECKLIST.md | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/QA-CHECKLIST.md` |
+| QA-CHECKLIST.md  | `{GITEA}/gitadmin/ArchiTools/raw/branch/main/QA-CHECKLIST.md`  |
 
 **Production app:** http://10.10.10.166:3000
 
@@ -187,25 +188,32 @@ Run `npx next build`, push to main, update ROADMAP.md + SESSION-LOG.md, notify m
 ## Tool-Specific Notes
 
 ### Claude Code (CLI)
+
 Works natively. Clone/pull, read files, edit, build, push — all built in.
 
 ### ChatGPT Codex
+
 Give it the repo URL. It can clone via git, read files, and push.
 Use the external URL: `https://git.beletage.ro/gitadmin/ArchiTools.git`
 
 ### VS Code + Copilot / Cursor / Windsurf
+
 Clone the repo locally first, then open in the IDE. The AI agent reads files from disk.
+
 ```bash
 git clone https://git.beletage.ro/gitadmin/ArchiTools.git
 cd ArchiTools && npm install && code .
 ```
 
 ### Google Antigravity
+
 Give it the repo URL. It can clone and work autonomously.
 Use: `https://git.beletage.ro/gitadmin/ArchiTools.git`
 
 ### Phone (ChatGPT app, Claude app)
+
 Can't run code directly, but can read files via raw URLs and give guidance:
+
 ```
 Read these URLs and help me plan the next task:
 https://git.beletage.ro/gitadmin/ArchiTools/raw/branch/main/CLAUDE.md
@@ -218,6 +226,7 @@ https://git.beletage.ro/gitadmin/ArchiTools/raw/branch/main/SESSION-LOG.md
 ## Git Workflow
 
 ### First time (any device)
+
 ```bash
 git clone https://git.beletage.ro/gitadmin/ArchiTools.git
 cd ArchiTools
@@ -226,12 +235,14 @@ npm run dev
 ```
 
 ### Session start (pull latest)
+
 ```bash
 git pull origin main
 npm install
 ```
 
 ### Session end (push)
+
 ```bash
 npx next build
 git add <specific-files>
@@ -246,26 +257,33 @@ git push origin main
 ## Files to Update After Every Session
 
 ### 1. `ROADMAP.md` — Mark done tasks
+
 ```markdown
 ### 1.01 ✅ (2026-02-18) `[LIGHT]` Verify Email Signature Logo Files
 ```
 
 ### 2. `SESSION-LOG.md` — Add entry at the TOP
+
 ```markdown
 ## Session — 2026-02-18 (Sonnet 4.6)
 
 ### Completed
+
 - 1.01: Verified logo files
 - 1.02: Added address toggle
 
 ### In Progress
+
 - 1.03: Prompt templates — 4 of 10 done
 
 ### Blockers
+
 - Need logo files from user
 
 ### Notes
+
 - Build passes, commit abc1234
+
 ---
 ```