Launchpad and Unrug fix and tests

[MSghais]

Description

Ekubo initial_tick calculation before was incorrect.

Folder: onchain/cairo/launchpad/
Scope: launchpad.cairo, unrug.cairo, edge_cases_tests.cairo

TODO:
We have done severals todo here #527, we need to verify and test it correctly.

• 1. Sort the tokens

• 2. Calculate y/x with liquidity_raised and initial_pool_supply.

• If token1 == quote_address, we need to scale the factor to not get a 0 value.

• 4. Calculate the sqrt_ratio with the y_x factor calculated before.

• 5. Use the library MathLib of Ekubo and call: sqrt_ratio_to_tick (Issue SQRT_RATIO_TOO_LOW)

• 6. Ensure the computed tick aligns with tick_spacing:If not divisible, round it down to the nearest valid tick.

• 7. Calculate the bounds accordingly

• Add edge tests

• Verify pool initialization with test

• Add test to buy tokens and verify it in the pool.

• Add library MathLib sqrt_to_ratio

• sort_token in launchpad

• Calculate y_x with the correct scale factor ratio

• Calculate sqrt_ratio

• Calculate sqrt_ratio_to_tick

• Bounds for full range liquidity

Continue the tests in the edge_cases_tests.cairo :

• edge cases
• verify unrug pool
• sqrt_ratio
• initial_tick

Actual error:

SQRT_RATIO_TOO_LOW
BOUND_TICK_SPACING
TICK_MAGNITUDE

Docs:

https://docs.ekubo.org/integration-guides/reference/math-1-pager

https://github.com/EkuboProtocol/abis/blob/main/src/interfaces/mathlib.cairo

https://github.com/EkuboProtocol/starknet-rust-sdk/blob/main/src/math/tick.rs

[Jagadeeshftw]

I'd like to work on this issue @MSghais

[MSghais]

@Jagadeeshftw give us some update on this issue please, pretty urgent