fix(wire): retarget stale /vql/execute callers + fuzz target to VCL

[hyperpolymath]

Wire-rename leftovers

Stage 1/5 hard-renamed the rust core route /vql/execute → /vcl/execute with no alias, but a few callers/refs were missed and have been broken since. This sweeps them up.

File	Change	Why
ffi/zig/src/graphql.zig	full VQL→VCL: outbound {rust}/vcl/execute, executeVql→executeVcl, VqlResult→VclResult, vql_val→vcl_val, messages	gateway was POSTing to the removed /vql/execute
ffi/zig/src/router.zig	inbound route /vcl/execute + comment	gateway's own surface
ffi/zig/README.adoc	GraphQL API docs (/api/v1/vcl/execute, executeVcl, VclResult)	match the code
examples/load-sample-data.sh, examples/smoke-test.sh	curl endpoint → /vcl/execute	scripts hit the removed path
.clusterfuzzlite/build.sh	fuzz_vql_parser → fuzz_vcl_parser	both fuzz/Cargo.toml and rust-core/fuzz/Cargo.toml already name the target fuzz_vcl_parser

Note: breaking change to the ffi/zig GraphQL API

The gateway's own mutation executeVql → executeVcl and VqlResult → VclResult. This is intentional and consistent with the no-alias hard-rename applied across the rust core and SDKs. Verified no other repo file references executeVql/VqlResult.

Deferred (different rename axis — not wire contract)

examples/vql-queries/ dir, the *.vql fixture files, and "VQL" comments / seed.json sample-data prose are tracked with the *.vql fixture-naming stage (the Mustfile/REUSE.toml *.vql globs still expect that extension). The example scripts still read vql-queries/*.vql — left intact so they keep working until that stage lands.

Verification

No Zig toolchain in this environment/CI, so validated statically: length-preserving token swaps, zero residual vql in the touched ffi/zig + scripts + build.sh, and no dangling executeVql/VqlResult anywhere.

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🤖 Draft. Independent of #147 (ReScript); both branch off main.

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Generated by Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 137 issues detected

Severity	Count
🔴 Critical	17
🟠 High	54
🟡 Medium	66

⚠️ Action Required: Critical security issues found!

View findings

[
  {
    "reason": "Issue in scorecard-enforcer.yml",
    "type": "scorecard_publish_with_run_step",
    "file": "scorecard-enforcer.yml",
    "action": "split_scorecard_publish_job",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Issue in instant-sync.yml",
    "type": "secret_action_without_presence_gate",
    "file": "instant-sync.yml",
    "action": "peter-evans/repository-dispatch",
    "rule_module": "workflow_audit",
    "severity": "high"
  },
  {
    "reason": "Issue in codeql.yml",
    "type": "codeql_missing_actions_language",
    "file": "codeql.yml",
    "action": "flag",
    "rule_module": "workflow_audit",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (1 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/Provenance.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (2 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/PlannerSemantic.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (1 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/Planner.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (6 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/Drift.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (1 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/WAL.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "User-defined Coq axiom -- not verified by kernel (2 occurrences, CWE-704)",
    "type": "coq_axiom",
    "file": "/home/runner/work/verisimdb/verisimdb/formal/Normalizer.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "medium"
  },
  {
    "reason": "getExn on external data -- use pattern matching (1 occurrences, CWE-754)",
    "type": "getexn_on_external",
    "file": "/home/runner/work/verisimdb/verisimdb/src/registry/Registry.res",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "critical"
  }
]

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