feat(connectors): add sovereign personal archive connector pack foundation

- Add connectors/ directory with base infrastructure
- Implement SourceEvent unified schema (source/account/thread/author/timestamp/content/attachments/raw_ref/hash/consent_scope)
- Create BaseConnector abstract class with checkpoint/dedup/consent gates
- Implement TwitterArchiveConnector for official Twitter/X data exports
- Add run_connector.py CLI entry point
- Add comprehensive test suite (13 tests, all passing)
- Add connectors/README.md with usage docs
- Add Makefile targets: test-connectors, run-connector, connectors-help
- Reference parent EPIC #194 and issue #233

This is the foundational connector pack. Future work: Discord, Slack, WhatsApp, Notion, iMessage, Google.

README.md

@@ -27,6 +27,11 @@ Before a session starts, queries knowledge store for relevant facts. Assembles c
 ### Pipeline 3: Measure
 Tracks whether compounding is happening. Knowledge velocity, error reduction, hit rate, task completion. Daily report proves the loop works.
 
+### Connector Pack (EPIC #233)
+Sovereign personal archive connectors: Twitter/X, Discord, Slack, WhatsApp, Notion, iMessage, Google.
+Connectors mirror local exports or explicit API tokens → normalize → redact → index → sync with provenance.
+See [`connectors/`](connectors/README.md) for the full connector suite and usage.
+
 ## Directory Structure
 
 ```
@@ -40,6 +45,12 @@ Tracks whether compounding is happening. Knowledge velocity, error reduction, hi
 │   ├── bootstrapper.py     # Pre-session context loader
 │   ├── measurer.py         # Compounding metrics
 │   └── session_reader.py   # JSONL parser
+├── connectors/              # Personal archive connectors (EPIC #233)
+│   ├── __init__.py
+│   ├── base.py
+│   ├── schema.py
+│   ├── twitter_archive.py
+│   └── README.md
 ├── metrics/
 │   └── dashboard.md        # Human-readable status
 └── templates/
@@ -65,4 +76,4 @@ See [all issues](https://forge.alexanderwhitestone.com/Timmy_Foundation/compound
 - EPIC 1: Session Harvester (#2)
 - EPIC 2: Knowledge Store & Bootstrap (#3)
 - EPIC 3: Compounding Measurement (#4)
-- EPIC 4: Retroactive Harvest (#5)
+- EPIC 4: Retroactive Harvest (#5)