Clarify native interop docs

[alexandratran]

• Split the two interoperability paths by name. The protocol page is now Canonical bridge (a Lineth network and its finalization layer). The stack page is now Native interoperability (direct coordination between two Lineth networks).
• Describe native interoperability as enabled by the Cross Ledger Interoperability Protocol (CLIP): a prepare-agree-commit plugin in each Lineth node, with no shared chain and no third-party bridge operator. Access control is optional: both sides commit unless the destination is restricted, in which case it checks its own RBAC policy before commit.
• Send other flows elsewhere. Use the canonical bridge to reach the finalization layer, and a bridge or relayer to reach a non-Lineth network.
• Note that CLIP is a proprietary feature for institutional and enterprise deployments, with a link to the strategic inquiries form.
• Remove the trust model's "Trusted bridge" section, so that label is no longer attached to this path.
• Minor edits to related content.

Preview: https://doc-linea-git-interop-trusted-bridge-consensys-incorporated.vercel.app/stack/deployment/interoperability

[vercel]

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Project	Deployment	Actions	Updated
doc-linea	Ready	Preview	Sep 30, 2026 11:29pm UTC

[bgravenorst]

lgtm