Prepare v1.0.0: migrate Slotstrike to SOF runtime and harden release flow

[Lythaeon]

Summary

This branch prepares v1.0.0 and contains two main changes:

1. Release workflow hardening

• skip cargo publish when the target crate version already exists on crates.io
• update the Intel macOS release runner target
• bump the crate version to 1.0.0

2. Runtime migration onto SOF

• replace the legacy ingress stack with SOF-native websocket, gRPC, and private-shred runtime paths
• add sof-tx submission integration, including direct routing support and direct leader schedule management
• source swap blockhashes from the SOF control-plane adapter when local blockhashes are available, and require a local blockhash on private_shred
• move Raydium candidate detection to structured transaction classification
• remove legacy FPGA/network-path/log-stream plumbing that is no longer part of the runtime path
• update config parsing, example config, README, and quality-gate wiring for the new runtime model
• replace the old ingress e2e coverage with focused runtime/unit coverage plus a live dry-run replay test

Risk Notes / Regressions Considered

• This is a large runtime refactor. The old ingress-specific modules and ports were removed, so existing deployments must use the SOF-based configuration model.
• private_shred now depends on SOF local recent-blockhash state before building swaps. That is intentional for low-latency correctness, but it means startup before control-plane warmup can refuse a trade instead of falling back to RPC.
• The inline SOF candidate path no longer blocks on the sniper ingress queue. Under overload it now drops candidate events and logs the drop count instead of backpressuring ingress.
• Release behavior changes slightly: publish is skipped if the exact version is already present on crates.io.

Validation Performed

• cargo make format-check
• cargo make test
• cargo make clippy
• cargo make deny
• cargo make audit
• cargo test --locked

Results:

• formatting passed
• tests passed
• clippy passed with -D warnings
• deny passed
• audit passed
• locked test run passed after the 1.0.0 version bump