feat: Add STATE.scm/CLAUDE.md sync mechanism

- Update STATE.scm with 2025-12-11 work
  - New version-status section for v1 tracking
  - New components: feedback_submitter, credentials, network_verifier
  - External contributions tracking (MCP SEPs, bug reports)
  - Sync metadata for validation

- Create .claude/CLAUDE.md for Claude Code context
  - Derived from STATE.scm (source of truth)
  - Quick reference for project state
  - v1.0 blockers checklist

- Add scripts/sync-state.sh
  - Check sync status between files
  - Update timestamps
  - Pre-commit hook installation

This prevents STATE.scm and CLAUDE.md from drifting out of sync.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: Jonathan D.A. Jewell

.claude/CLAUDE.md

@@ -0,0 +1,104 @@
+# feedback-a-tron
+
+> **SYNC STATUS**: Keep in sync with `STATE.scm` - run `scripts/sync-state.sh` to verify
+> **Last sync**: 2025-12-11T14:30:00Z
+
+## Project Overview
+
+Automated multi-platform feedback submission with network verification.
+
+- **Version**: 0.2.0 (alpha)
+- **Phase**: ~60% to v1.0
+- **Origin**: Claude Code API error investigation → MCP security proposals
+
+## Quick Reference
+
+### What This Project Does
+
+1. **Multi-platform issue submission** - Submit to GitHub, GitLab, Bitbucket, Codeberg from one place
+2. **Network verification** - Verify submissions actually arrive (latency, packet loss, TLS, DANE)
+3. **Credential rotation** - Rotate API tokens to avoid rate limits
+4. **MCP integration** - `submit_feedback` tool for Claude Code
+
+### Key Files
+
+```
+elixir-mcp/lib/
+├── feedback_submitter.ex     # Multi-platform submission GenServer
+├── credentials.ex            # Credential management with rotation
+├── network_verifier.ex       # Network-layer verification
+└── mcp/tools/submit_feedback.ex  # MCP tool for Claude
+
+docs/
+└── LANDSCAPE.adoc            # Ecosystem analysis
+```
+
+### Tech Stack
+
+- **MCP Server**: Elixir (OTP supervision, pattern matching)
+- **Network Tools**: ping, traceroute, mtr, openssl, dig
+- **Future**: Julia (stats), ReScript-Tea (UI), Oxigraph (RDF)
+
+## v1.0 Blockers
+
+### Must Have
+- [ ] Elixir MCP server compiles and runs
+- [ ] Multi-platform submission works (GitHub, GitLab)
+- [ ] Network verification pre-flight checks
+- [ ] Credential rotation functional
+- [ ] Basic deduplication
+
+### Should Have
+- [ ] Bitbucket and Codeberg support
+- [ ] Post-submission verification
+- [ ] DNSSEC/DANE checks
+- [ ] Audit logging
+
+## Recent Work (2025-12-11)
+
+1. Created `FeedbackATron.Submitter` - multi-platform submission
+2. Created `FeedbackATron.Credentials` - credential rotation
+3. Created `FeedbackATron.NetworkVerifier` - network verification
+4. Created MCP tool `submit_feedback`
+5. Submitted MCP Security SEPs (#1959-#1962)
+6. Submitted Claude Code bug report (#13683)
+
+## External Contributions
+
+| Date | Target | Issues | Topic |
+|------|--------|--------|-------|
+| 2025-12-11 | modelcontextprotocol | #1959-#1962 | MCP Security (DNS, .well-known, headers, unified profile) |
+| 2025-12-11 | anthropics/claude-code | #13683 | Content filter session corruption |
+
+## Design Decisions
+
+- **Elixir over Rust**: OTP supervision, pattern matching for Datalog
+- **ETS over SQLite**: In-memory speed, Oxigraph for persistence
+- **CLI fallback**: gh/glab already authenticated, handles token refresh
+- **Network verification mandatory**: Feedback silently fails without it
+
+## Commands
+
+```bash
+# Run MCP server
+cd elixir-mcp && mix deps.get && iex -S mix
+
+# Test submission (when complete)
+FeedbackATron.Submitter.submit(%{
+  title: "Test issue",
+  body: "Testing",
+  repo: "owner/repo"
+}, platforms: [:github])
+```
+
+## Sync Validation
+
+STATE.scm is the source of truth. CLAUDE.md is derived.
+
+```bash
+# Check sync
+./scripts/sync-state.sh check
+
+# Regenerate CLAUDE.md from STATE.scm
+./scripts/sync-state.sh generate
+```