release(v1.6.3): CIRISEdge#65 v1 FEATURE-COMPLETE — PyO3 init wiring shipped

Pin-only bump for the release tag. The substantive work landed in
#79 (commit e5cca14) and is already on main; this commit moves the
version string from 1.6.2 → 1.6.3 so the v1.6.3 release tag points
at the post-#79 main with the right declared version.

## #65 ladder — all 8 rungs landed

| Rung | PR / cut         | Surface                                          |
|------|------------------|--------------------------------------------------|
| 1    | #69              | Protocol state machine                           |
| 2    | #70              | ReplicationCoordinator                           |
| 3    | #71              | Directory adapters                               |
| 4    | #72              | Wire-frame prefix (CRPL magic)                   |
| 5    | #73              | Long-lived Session in coordinator                |
| 6    | #75 / #76        | Scheduler + v1 wire-format lock                  |
| 7    | #78 (v1.6.0)     | Layer (c-2) FederationDirectoryReplicationBridge |
| 8    | #79 (this cut)   | ReplicationRegistry + Runtime + PyO3 init        |

After v1.6.3, #65 closes as v1 feature complete.

## What v1.6.3 ships (the #79 surfaces)

- `replication::registry::ReplicationRegistry` — application-side
  dispatch table indexed by (peer_key_id, kind). `route_inbound_bytes`
  hot-path call returns a RouteOutcome trichotomy (Routed /
  NotAReplicationFrame / NoCoordinatorRegistered) + BackPressure error
  for channel-full conditions.
- `replication::runtime::ReplicationRuntime::start(directory, transport,
  peers, config)` (async) — bundles bridge + registry + scheduler task
  + shutdown handle into one managed runtime.
- `PyEdge::start_replication(peers, cadence_seconds=None)` — Python
  surface that lifts the operator's peer list + cadence into a
  ReplicationRuntime via persist's executor capsule. Returns a
  `PyReplicationHandle` with `registered_count` / `register_peer` /
  `stop` methods.

## Substrate pins unchanged

- ciris-persist v4.15.0 (CEG 1.0 §0.9 JCS canonicalization flip)
- ciris-verify v5.0.0 (CEG 1.0 / Agent 3.0 substrate)
- v1 wire taxonomy locked at 10 variants (WIRE_PROTOCOL_VERSION = 0x01)

## v1.7+ follow-ups (deferred; non-blocking)

- `Edge::install_replication_routing(runtime)` opt-in helper that
  wires `registry.route_inbound_bytes` into the existing
  `Transport::listen` loop (currently operator-wired)
- ReadEngine bulk optimization for Key/Attestation/Revocation
- persist-side `lookup_*_by_content_hash` admit surfaces
- Scheduler dynamic-add API for hot-added Initiator coordinators

## Path to CIRIS 2.0 (FSD §5) — unchanged

- v2 cut gated on CIRISRegistry#58 Phase 2 (operational-data envelopes)
- v2 will be the natural moment to switch envelope_hash to a
  CEG-§0.9-conformant basis (per §3.2.1's deferred interop path)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: emooreatx

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ciris-edge"
-version = "1.6.2"
+version = "1.6.3"
 edition = "2021"
 rust-version = "1.75"
 authors = ["Eric Moore <mooreericnyc@gmail.com>"]