
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 the function $f(x) = \frac{x}{e^x} - mx \, (m \in \mathbb{R})$,
(Ⅰ) Discuss the monotonicity of the function $f(x)$ when $m = 0$;
(Ⅱ) When $b > a > 0$, it always holds that $\frac{f(b) - f(a)}{b - a} > 1$. Determine the range of the real number $m$.

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