fix(web): genericize free-MCP client identity per telemetry policy

Replace the hermes-identifying clientInfo/User-Agent/session-id prefix on
the keyless Parallel Search MCP path with a neutral 'mcp-web-client'
identity. Project policy forbids third-party usage attribution without an
explicit user opt-in (see telemetry PR policy); MCP requires a clientInfo,
so a generic one satisfies the spec without attributing traffic.

Also adds the contributor AUTHOR_MAP entry and refreshes uv.lock against
current main (parallel-web 0.6.0).

scripts/release.py

@@ -75,6 +75,7 @@ AUTHOR_MAP = {
     "129007007+HeLLGURD@users.noreply.github.com": "HeLLGURD",
     "290859878+synapsesx@users.noreply.github.com": "synapsesx",
     "dirtyren@users.noreply.github.com": "dirtyren",
+    "mharris@parallel.ai": "NormallyGaussian",
     "ted.malone@outlook.com": "temalo",
     "adityamalik2833@gmail.com": "alarcritty",
     "islam666@users.noreply.github.com": "islam666",