Point codedb_remote at api.wiki.codes

[justrach]

Summary

• route the wiki backend in codedb_remote directly to https://api.wiki.codes/api//
• map wiki query params to the native router shape: search=q, symbol=name, outline=path
• expose wiki dependency/security/history actions: deps, score, cves, commits, branches, dep-history
• accept raw wiki slugs like chromium while keeping owner/repo validation for codegraff
• update README and architecture docs

Verification

• zig build
• zig build test
• MCP smoke: tools/list includes api.wiki.codes and cves
• MCP smoke: codedb_remote backend=wiki repo=justrach/codedb action=symbol query=buildSnapshot
• MCP smoke: codedb_remote backend=wiki repo=axios/axios action=cves scope=runtime
• MCP smoke: codedb_remote backend=wiki repo=chromium action=policy

[github-actions]

Benchmark Regression Report

Thresholds: 10.00% and 50,000 ns absolute delta

NOISE means the percentage threshold was exceeded, but the absolute delta was too small to fail CI.

Tool	Base (ns)	Head (ns)	Delta	Abs Delta (ns)	Status
codedb_bundle	478685	479962	+0.27%	+1277	OK
codedb_changes	53873	63417	+17.72%	+9544	NOISE
codedb_deps	8925	9023	+1.10%	+98	OK
codedb_edit	6178	5840	-5.47%	-338	OK
codedb_find	57958	61535	+6.17%	+3577	OK
codedb_hot	99697	96059	-3.65%	-3638	OK
codedb_outline	247087	239075	-3.24%	-8012	OK
codedb_read	91980	82555	-10.25%	-9425	OK
codedb_search	175020	179116	+2.34%	+4096	OK
codedb_snapshot	253015	250649	-0.94%	-2366	OK
codedb_status	212278	216354	+1.92%	+4076	OK
codedb_symbol	57332	57858	+0.92%	+526	OK
codedb_tree	80472	88831	+10.39%	+8359	NOISE
codedb_word	67571	68141	+0.84%	+570	OK

[chatgpt-codex-connector]

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Reviewed commit: 32b5e3f82c

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[chatgpt-codex-connector]

Treat empty query as absent for score/cves scope default

handleRemote derives scope via getStr(args, "scope") orelse query orelse "runtime", so if a client includes query:"" (common in generic MCP forms) and omits scope, the empty query is selected and then rejected by the runtime/all validation. That contradicts the documented default-to-runtime behavior and makes otherwise valid score/cves requests fail based only on an unused empty field; empty query should be ignored for this fallback path.

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