feat: 1.0.0b8 — MCP registry metadata + --source attribution flag [INIT-2026-556]

[SyncTekLLC]

Summary

W1 launch foundations for INIT-2026-556 ($5K MRR in 90 days). Two coupled features:

Feature A — MCP registry metadata

Per M2 agentic-distribution audit: SimDrive is absent from every major MCP registry today. This PR unblocks ingestion by Anthropic's official MCP registry (and downstream Smithery / Glama / awesome-mcp-servers / PulseMCP mirrors).

• <!-- mcp-name: io.github.SyncTek-LLC/simdrive --> HTML comment at the top of README.md (root) and simdrive/README.md — the convention Anthropic's registry uses to verify PyPI ownership.
• server.json at the repo root declaring canonical MCP metadata (name / version / repo / license / runtime / packages / transport=stdio / runtimeHint=uvx) per the modelcontextprotocol/registry schema.

Feature B — simdrive trial start --source <channel> attribution

Per M4 pipeline math: we need to know which channel drove each trial to size $5K MRR funnel inputs. New CLI surface (opt-in by default, explicit opt-out available):

simdrive trial start --email <user> --source hn
simdrive trial start --email <user> --source reddit:iOSProgramming
simdrive trial start --email <user> --source cursor.directory
simdrive trial start --email <user> --no-track        # per-call opt-out

• POST shape: {hashed_email, source, ts, package_version, os} to https://api.simdrive.dev/trial. Contract negotiated with sibling W1-W agent building the Worker endpoint.
• Raw email NEVER leaves the machine — only sha256(email.lower().strip()) is transmitted. OS field is the coarse family (darwin / linux / other), not a fingerprint.
• Network failure is non-fatal: trial license still installs locally and CLI prints one "telemetry skipped" notice.
• Persistent opt-out via ~/.simdrive/telemetry.toml (track = false) or SIMDRIVE_TELEMETRY_OFF=1 env var. File-present-without-key is treated as opt-out (fail-closed for privacy).

Wave bump

• simdrive/pyproject.toml: 1.0.0b7 → 1.0.0b8
• simdrive/CHANGELOG.md head entry added

Anti-overreach (per task spec)

• Zero changes to license generation, JWT shape, paywall enforcement, or any other existing trial behaviour.
• No fingerprinting beyond hashed_email + source + ts + version + OS family.
• Raw email is never logged — only the hash.
• --no-track and persisted opt-out config always win over defaults.

Test plan

• 27 new unit + integration tests in simdrive/tests/test_trial_source_attribution.py (hash determinism, default source = "direct", --no-track zero-network, opt-out file/env resolution, exact contract shape, all network-failure non-fatal paths)
• Existing trial CLI tests (test_trial_cli.py) — 9 passing, no regressions
• Publish gates (tests/packaging/test_publish_gates.py) — 9 passing, version-match contract satisfied
• Full non-live simdrive suite: 1674 passed, 3 skipped, 0 failed (32s)
• CLI end-to-end smoke: simdrive trial start --email <x> --offline-dev --no-track exits 0 with both license and telemetry notices

Post-merge

• Tag simdrive-v1.0.0b8, watch PyPI publish, watch downstream cascade to simdrive-site changelog.
• Sibling agent ships the Worker /trial endpoint on simdrive-license-api.

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