chore: consolidate documentation — delete status/fix/progress cruft

Before: 335 tracked .md files; top level had 14 README-like docs;
docs/ contained ~234 files, most of them auto/LLM-generated status
reports (ALL_*_COMPLETE*, *_FIX*, DEPLOYMENT_*_FINAL*, etc.).

After: 132 tracked .md files. Repo now has exactly five top-level
docs: README.md, QUICKSTART.md, RUNBOOK.md, CONTRIBUTING.md,
CHANGELOG.md (moved up from docs/).

Keeper philosophy in docs/:
- API, CCIP (ops + security + receiver/router refs), Chainlist refs,
  compliance, deployment (guides not status), database connection,
  legal compliance, metamask integration, production checklist,
  tiered-architecture implementation/setup, reusable-components plan,
  token-mechanism doc, wrap-and-bridge operational reference, plus
  docs/specs/** and docs/api/ / docs/openapi/ trees.

Deleted (git history preserves provenance):
- All 'ALL_*_COMPLETE*' / '*_FIX*' / '*_FIXED*' / '*_FINAL*' /
  '*_STATUS*' / '*_PROGRESS*' / '*_SUMMARY*' files.
- BLOCKSCOUT_*_FIX / _CRASH / _INITIALIZATION / _SCHEMA / _YAML /
  _SKIP / _NEXT_STEPS / _START_AND_BUILD / _DATABASE_CREDENTIALS
  (the last contained passwords).
- CCIP_IMPLEMENTATION_* / CCIP_CURRENT_STATUS / CCIP_GAP_*
  (gap analyses are not a sustained reference).
- NPMPLUS_CREDENTIALS_GUIDE.md (contained creds).
- LETSENCRYPT_CONFIGURATION_GUIDE.md (contained creds; will be
  re-introduced as runbook content post-secrets-scrub).
- docs/diagnostic-reports/, docs/feature-flags/ (run-time artifacts).

README.md: dead links (START_HERE, README_DEPLOYMENT, COMPLETE_DEPLOYMENT,
DEPLOYMENT_COMPLETE_FINAL) replaced with links to the five canonical
top-level docs + docs/ index.

docs/PRIVATE_KEY_CONFIGURED.md

@@ -1,88 +0,0 @@
-# PRIVATE_KEY Configuration Complete
-
-**Date**: 2025-12-24  
-**Status**: ✅ PRIVATE_KEY configured in .env file
-
----
-
-## Configuration Summary
-
-✅ **PRIVATE_KEY has been set in `.env` file**
-
-**Location**: `/home/intlc/projects/proxmox/smom-dbis-138/.env`
-
-**Format**: `PRIVATE_KEY=0x5373d11ee2cad4ed82b9208526a8c358839cbfe325919fb250f062a25153d1c8`
-
-**File Permissions**: `600` (read/write for owner only - secure)
-
----
-
-## Verification
-
-To verify the PRIVATE_KEY is set correctly:
-
-```bash
-cd /home/intlc/projects/proxmox/smom-dbis-138
-./scripts/verify-private-key.sh
-```
-
-This will:
-- ✅ Check if PRIVATE_KEY is set
-- ✅ Validate the format
-- ✅ Show the deployer address
-- ✅ Check the deployer balance
-
----
-
-## Next Steps
-
-### 1. Verify PRIVATE_KEY
-
-```bash
-cd /home/intlc/projects/proxmox/smom-dbis-138
-./scripts/verify-private-key.sh
-```
-
-### 2. Deploy All Contracts
-
-```bash
-cd /home/intlc/projects/proxmox/smom-dbis-138
-./scripts/deploy-and-integrate-all.sh
-```
-
-This will automatically:
-- Deploy ComplianceRegistry
-- Deploy CompliantUSDT
-- Deploy CompliantUSDC
-- Deploy TokenRegistry
-- Deploy FeeCollector
-- Register all contracts
-- Verify deployments
-- Save all addresses to .env
-
----
-
-## Security Notes
-
-⚠️ **Important Security Reminders**:
-
-1. ✅ `.env` file has secure permissions (600)
-2. ⚠️ **NEVER commit .env to version control**
-3. ⚠️ **Keep PRIVATE_KEY secure and private**
-4. ⚠️ **Do not share PRIVATE_KEY with anyone**
-
----
-
-## Quick Reference
-
-**Deployer Address**: Run `./scripts/verify-private-key.sh` to see the deployer address
-
-**Check Balance**: The verification script will show the deployer balance
-
-**Deploy Contracts**: `./scripts/deploy-and-integrate-all.sh`
-
----
-
-**Last Updated**: 2025-12-24  
-**Status**: ✅ **READY FOR DEPLOYMENT**
-