
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given a sequence $\{a_n\}$ that satisfies $a_1=2, na_{n+1}=(n+1)a_n+2, n\in \mathbb{N}^*$, and the sum of the first $n$ terms of sequence $\{b_n\}$, denoted as $S_n$, satisfies $S_n=2^{n+1}$.

(1) Find the general formula for sequences $\{a_n\}$ and $\{b_n\}$;

(2) Calculate the sum of the first $n$ terms of the sequence $\left\{\frac{a_n}{b_n}\right\}$, denoted as $T_n$.

Present the answer in LaTex format: \boxed{Your answer}
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