fix(security): prevent ssrf in web research

[d-oit]

Introduces robust hostname and IP address validation to reject private, loopback, multicast, local, link-local, carrier-grade NAT and special IPv4/IPv6 address patterns, including various bypass vectors (hex, decimal, octal formats and IPv4-mapped IPv6) to protect against SSRF and local network leaks.

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PR created automatically by Jules for task 8079690493511114370 started by @d-oit

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Project	Deployment	Actions	Updated (UTC)
do-knowledge-studio	Ready	Preview, Comment, Open in v0	Jul 25, 2026 12:53am

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