• Bump target version constant to 6.0.0
• Updates TARGET_VERSION in protocol params configuration

Update target version constant to 6.0.0

• Updated TARGET_VERSION constant from "5.6.2" to "6.0.0"
• MIN_VERSION remains unchanged at "5.5.1"

x/protocol/types/params.go

Description

With TARGET_VERSION set to 6.0.0, lavavisor’s binary fetch loop can become non-terminating if v6.0.0
isn’t available, because the version-decrement helper is a no-op at X.0.0. This can hang
upgrades/startup instead of falling back within the [min,target] range.

Code

x/protocol/types/params.go[R15-16]

+	TARGET_VERSION = "6.0.0"
	MIN_VERSION    = "5.5.1"

Evidence

The PR sets the on-chain default ProviderTarget/ConsumerTarget to 6.0.0. Clients (lavavisor) read
this value from the chain and attempt to fetch a protocol binary by iterating from ProviderTarget
down to ProviderMin, decrementing the semantic version each iteration. The decrement function does
not implement the documented Major decrement when Minor==0 and Patch==0, so when the target is 6.0.0
and the initial fetch attempt fails, the loop never progresses and never terminates.

x/protocol/types/params.go[14-26]
protocol/statetracker/updaters/state_query.go[128-140]
ecosystem/lavavisor/pkg/process/fetcher.go[61-92]
ecosystem/lavavisor/pkg/util/common.go[98-106]
x/protocol/keeper/migrations.go[18-22]

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
With protocol `TARGET_VERSION` bumped to `6.0.0`, lavavisor may enter an infinite loop when it fails to fetch the `v6.0.0` binary (missing local dir / download failure). The loop attempts to decrement the version until `minVersion`, but `DecrementVersion()` is a no-op at `X.0.0` because it never decrements `Major`.

## Issue Context
Lavavisor’s fetch loop decrements from `ProviderTarget` down to `ProviderMin` to find an available binary. With `ProviderTarget=6.0.0` and `ProviderMin=5.5.1`, a failure to fetch `6.0.0` should fall back to `5.x`, but cannot.

## Fix Focus Areas
- ecosystem/lavavisor/pkg/util/common.go[98-106]
- ecosystem/lavavisor/pkg/process/fetcher.go[61-92]
- ecosystem/lavavisor/pkg/process/fetcher_without_build.go[59-92]

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